How do ocean currents work

Answers

Answer 1

Answer:

These currents are on the ocean's surface and in its depths, flowing both locally and globally. Winds, water density, and tides all drive ocean currents. Coastal and sea floor features influence their location, direction, and speed. Earth's rotation results in the Coriolis effect which also influences ocean currents.

Explanation:

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Related Questions

why does the oceanic crust sink beneath the continental crust at the subduction zone

Answers

Answer:

oceanic crust sinks because it is denser and has higher specific gravity than the more silicon aluminum enriched continental crust. What drives substitution is convection and conduction in outer core of earth, that heat , only a small part of which is due radioactive isotopes, has to make it's way to Earth's surface by both conduction and convection. Iron and nickel o have the highest specific gravities of the 10 most common elements in the Milky Way Galaxy. This is why oceanic crust sinks and is subducted continental crust has to have a lot more force applied before it inks, because it doesn't want to sink.

Oceanic crust is denser than continental crust. At a subduction zone, the oceanic crust usually sinks into the mantle beneath lighter continental crust. (Sometimes, oceanic crust may grow so old and that dense that it collapses and spontaneously forms a subduction zone, scientists think.

what force that change the earth surface ​

Answers

Gravity and erosion are major factors in changing the shape of the surface of Earth.

Answer:

Gravity and erosion

Explanation:

Isolated area of vegetation in the desert

Question 6 options:

Oasis


Wadis


Delta Region


Alluvial Soil

Answers

the answer should be an oasis

Grange Ltd's computer systems have recently been affected by hacking with the
consequence that its data files have been stolen by criminals. The criminal gang have offered
to return the files for a payment of £1 million.
Which of the following cyber attacks is Grange Ltd a victim of?
A
Webcam manager
B Keylogging
C С File hijacking
D Phishing​

Answers

Answer:

c

Explanation:

In its broadest definition, DLL hijacking refers to deceiving a reliable/trusted application into loading a malicious DLL. Hence option C is correct .

What is Hacking ?

The same thing is frequently -incorrectly-described using terms like DLL Search Order Hijacking, DLL Load Order Hijacking, DLL Spoofing, DLL Injection, and DLL Side-Loading.

Types

There are several options, and the effectiveness of each depends on how the application is set up to load the necessary DLLs. Potential strategies include:

DLL replacement: swap out a good DLL for a bad one. This can be coupled with DLL Proxying to guarantee that the original DLL's full functionality is preserved.

DLL search order hijacking: Fixed locations are searched for in a particular order when DLLs given by a program without a path are present.

The search order has been hijacked.By placing the malicious DLL in a location that is searched before the ` DLL, order is achieved. This occasionally includes the target application's working directory.

Phantom DLL hijacking is when a malicious DLL is substituted for a valid DLL that a legitimate application is attempting to load.

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Provide an example for each type of economic system

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Capitalism: Wall Street and the stock market embody capitalism. Large, publicly-traded companies sell stock to raise capital, which is bought and sold by investors via a system in which prices are directly impacted by supply and demand.

Communism: states controlled by Marxist–Leninist parties under a single-party system include the People's Republic of China, the Republic of Cuba, the Lao People's Democratic Republic, and the Socialist Republic of Vietnam.

Socialism: Many people use the term socialism to describe behavior in which a government takes on a larger role in the economy. For example, many opponents claim that former President Barack Obama, of the United States of America, is a socialist because he takes the position that the government should be involved in many aspects of people's lives and because he believes that people have a shared responsibility to each other.

Feudalism: An example of feudalism is someone farming a piece of land for a lord and agreeing to serve under the lord in war in exchange for getting to live on the land and receiving protection.

Distributism: Under such a system, most people would be able to earn a living without having to rely on the use of the property of others to do so. Examples of people earning a living in this way would be farmers who own their own land and related machinery, carpenters, and plumbers who own their own tools, among others.

Statism: Their mood was somber, for statism had permeated the governments of Western Europe while communism ruled in Eastern Europe with a little help from the Soviet Army.

Inclusive democracy: to serve as members of popular courts, or of regional and confederal councils. Such delegation is made, in principle, by lot, on a rotation basis, and is always recallable by the citizen body. Delegates to regional and confederal bodies should have specific mandates.

Market economy: The United States, England, and Japan are all examples of market economies. Alternatively, a command economy is organized by a centralized government that owns most, if not all, businesses and whose officials direct all the factors of production.

Mercantilism: Restrictions on imports – tariff barriers, quotas, or non-tariff barriers.

Mutualism: This is where 2 different countries get along. For example, how In World War II the chief Allied powers were Great Britain, France (except during the German occupation, 1940–44), the Soviet Union (after its entry in June 1941), the United States (after its entry on December 8, 1941), and China.

Network economy: Notable examples of the network economy model include arms trafficking and the illegal drug trade. Merchants participating in those markets cannot openly advertise their wares and participate in the open market since that would attract the attention of law enforcement agencies.

Palace economy: An example is the Minoan civilization which depended economically on the cultivation of wheat, olives, grapes, and other products. The Minoan economy also supported several industries such as the textile, pottery, and metalwork industries. Some of the manufacturing industries were based in the palaces.

Potlatch: During the potlatch, the chieftain gave a speech to thank all of his guests. Example: We held a crazy potlatch for my sister's 16th birthday. Example: The college students would potlatch almost every weekend, carousing until the sun came up.

Proprietism: There are no limited liability corporations, only full liability businesses where owners use insurance to protect their personal assets. If the company is engaging in poor safety practices, insurance costs will be higher, making it harder to raise capital in the first place (more investors will move their money to safer industries instead). If a catastrophe happens, owners' responsibility does not stop when they sell their shares. Instead, they will be personally responsible for a percentage of the damages and debts relative to the proportion of ownership they held. Assuming they purchased investors' personal liability insurance and/or their company purchased it for them, their personal assets should be protected and the insurance company makes any necessary payment in their place. If they didn't, they may have to sell their house, their car, etc. to pay off the victims of their corporation.

Workers' self-management: Prominent examples include the Brukman factory, the Hotel Bauen, and FaSinPat (formerly known as Zanon). As of 2020, around 16,000 Argentine workers run close to 400 recuperated factories. The phenomenon of Empresas Recuperadas ("recovered enterprises") is not new in Argentina.

aztec POLITICAL BOUNDARIES

Answers

Answer:

The Aztec empire was made up of a series of city-states known as altepetl. Each altepetl was ruled by a supreme leader (tlatoani) and a supreme judge and administrator (cihuacoatl). The tlatoani of the capital city of Tenochtitlan served as the Emperor (Huey Tlatoani) of the Aztec empire.

Explanation:

aztec POLITICAL BOUNDARIES

which is the big country​

Answers

Explanation:

Russia

hope it helpful ✌️✌️

Why do you think water is essential for life on Earth?

Answers

Answer:

At heart, all life on Earth uses a membrane that separates the organism from its environment. ... In this regard, water is essential simply because it's a liquid at Earth-like temperatures. Because it flows, water provides an efficient way to transfer substances from a cell to the cell's environment.

Explanation:

Found it on Google

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Write a essay about paleoclimatologist

Answers

Paleoclimatology is the study of past climate and climate change over a long period of time. Paleoclimatologists use a variety of methods to reconstruct past climates, such as analyzing tree rings, ice cores, sediment cores, and fossils. These reconstructions provide valuable insights into the natural variability of the Earth's climate system and help us understand the impact of human activities on the climate.

Paleoclimatologists play a critical role in understanding the Earth's climate history. By analyzing the climate records from the past, they can better predict and prepare for future changes in the climate. Paleoclimatology is a multidisciplinary field that combines aspects of geology, chemistry, biology, and physics. Paleoclimatologists use a variety of techniques to analyze the climate records, such as isotopic analysis, radiometric dating, and magnetic analysis.

One of the main tools used by paleoclimatologists is ice cores. Ice cores are cylindrical samples of ice taken from glaciers and ice sheets. These cores contain a record of the Earth's climate history, including information about temperature, precipitation, atmospheric composition, and volcanic activity. By analyzing the layers in the ice cores, paleoclimatologists can reconstruct the climate history of the Earth over the past several thousand years.

Another important tool used by paleoclimatologists is sediment cores. Sediment cores are samples of sediment taken from the bottom of lakes and oceans. These cores contain a record of the Earth's climate history, including information about temperature, precipitation, and ocean circulation. By analyzing the layers in the sediment cores, paleoclimatologists can reconstruct the climate history of the Earth over the past several million years.

Paleoclimatology is also important for understanding the impact of human activities on the climate. By comparing the climate records from the past with the current climate, paleoclimatologists can identify the extent to which human activities are affecting the climate. For example, the increase in atmospheric carbon dioxide concentrations since the Industrial Revolution has been linked to the increase in global temperatures over the past century.

In conclusion, paleoclimatology is a critical field of study that helps us understand the natural variability of the Earth's climate system and the impact of human activities on the climate. Paleoclimatologists use a variety of methods to reconstruct past climates, including analyzing tree rings, ice cores, sediment cores, and fossils. By analyzing the climate records from the past, paleoclimatologists can better predict and prepare for future changes in the climate.

A water feature that could be a source of groundwater for humans is found at a location on a hillside where Earth’s surface is lower than the water table.



What type of feature might be observed at this location?

spring
aquifer
artesian well
unsaturated zone

Answers

Answer:

spring

Explanation:

A spring forms where the water table intersects the ground surface. Sometimes, the ground surface is lower than the water table. This forms a natural water flow as a spring.

An artesian well occurs where pressurized formations containing ground water is found. Unsaturated zone is not filled with ground water. An aquifer is a porous and permeable formation that can store ground water

Answer:

spring(a)

Explanation:

edge quiz i got i correct 2020

Please help me on this!!!

Please help me on this!!!

Answers

A space can be described as the boundless area in which objects can be said to have positions and also have direction. A place can be used to describe a location. That is an area that is specifically named and has a physical significance.

What is the difference between space and place?

The space can be said to be the empty area that is not occupied and has an empty interval. While a place is a location that has density, population and other characteristics.

An example of a place in North America would be Georgia, and example of a place in Sub-Saharan Africa is Togo and in Latin America we have Columbia.

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Explain the inequalities of the division of the north and the south.

Answers

The division between the North and the South refers to the historical and socio-economic disparities that existed in the United States before and during the American Civil War (1861-1865).

These inequalities encompassed various aspects such as economy, culture, politics, and social structures. Economically, the North was characterized by industrialization, commerce, and a diverse economy that included manufacturing, trade, and finance. On the other hand, the South relied heavily on agriculture, particularly cotton plantations worked by enslaved African Americans.

The Southern economy was primarily agrarian, with limited industrialization and dependence on cash crops. This economic divide led to stark differences in social structures and attitudes. The South upheld a plantation system that was based on slavery, resulting in a hierarchical society with a small class of wealthy plantation owners and a large population of enslaved people.

In contrast, the North had a more diverse population and was home to a growing middle class, with a greater emphasis on individual freedoms and wage labor. Politically, the differences between the North and the South became pronounced as issues of slavery, states' rights and economic policies came to the forefront.

The Northern states gradually shifted towards opposing slavery and supporting abolitionist movements, while the Southern states sought to protect and expand their institution of slavery. These divisions ultimately culminated in the American Civil War, as tensions reached a breaking point. The war was fought between the industrialized, anti-slavery North (Union) and the agrarian, pro-slavery South (Confederacy).

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30 POINTS + BRAINLIEST PLEASE HELP ME

30 POINTS + BRAINLIEST PLEASE HELP ME

Answers

Answer:D

Explanation: there are three kingdoms, divided into classes, and they, in turn, into orders, genera (singular: genus), and species (singular: species), with an additional rank lower than species. a term for rank-based classification of organisms, in general.

What type of education did slaveholders offer enslaved people? Enslaved people were provided with religious education. Enslaved people were taught math to help with accounting. Enslaved people were taught how to manage plantations. Enslaved people were banned from learning to read or write.

Answers

Answer:

D

Explanation:

edge 2021 :)

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Answer:

c

Explanation:

geographical challenges faced by informal traders​

Answers

Answer:

Mountains, rivers, deserts.

Explanation:

All of these make it much more difficult to conduct trade.

Which of the following does NOT affect average temperatures on the Earth?
a. The earth's tilt on its axis
b. Continentality
c. The ebb and flow of tides
d. Elevation

Answers

Answer:

the answer is

Explanation:

Continentality.

(b)

Continentality does not affect average temperatures on the Earth. Hence, option B is correct.

What is Continentality?

Continentality refers to the broader range of temperatures that can be found on land than in water and serves as a measure of the difference between continental and marine climates.

Continentality is a type of climate where water bodies have little to no impact on temperature and where heating an area uses less energy. Accordingly, the more away you are from an ocean or other major body of water, the larger the seasonal temperature change is.

A few climatic characteristics that have a big impact on continentality are latitude, sea distance, and atmospheric circulation. The continentality index is commonly calculated using latitude and the range of annual air temperatures.

Thus, option B is correct.

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What does mining do to an area?

Answers

Answer:

Across the world, mining contributes to erosion, sinkholes, deforestation, loss of biodiversity, significant use of water resources, dammed rivers and ponded waters, wastewater disposal issues, acid mine drainage and contamination of soil, ground and surface water, all of which can lead to health issues in local

Explanation:

Environmental issues can include erosion, formation of sinkholes, loss of biodiversity, and contamination of soil, groundwater and surface water by chemicals from mining processes. In some cases, additional forest logging is done in the vicinity of mines to create space for the storage of the created debris and soil. Contamination resulting from leakage of chemicals can also affect the health of the local population if not properly controlled. Extreme examples of pollution from mining activities include coal fires, which can last for years or even decades, producing massive amounts of environmental damage.

What is the largest city in America?​

Answers

Answer:

The answer is

Explanation:

I dont know -.-

But i need poin ts and you need to help me that

Answer:

New York if your talking population

Why did scientists remove pluto away from the solar system?​

Answers

Answer:

main reason for this name change comes from a redefinition of what a planet is.

Explanation:

Dwarf planet the status of Pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to define a full-sized planet.

Answer:

The International Astronomical Union (IAU) downgraded the status of Pluto to that of a dwarf planet because

it did not meet the three criteria the IAU uses to define a full-sized planet. Essentially Pluto meets all the criteria except one—it “has not cleared its neighboring region of other objects.

how did the Eloise tropical cyclone impact the economy?​

Answers

Answer: These left a combined 655 people dead and had a severe impact on the economy in 2019. “We expect the government to increase expenditure over the next few years as it continues to battle the effects of the pandemic and now the effects of the cyclone.

It should be noted that the Eloise tropical cyclone impacted the economy by decreasing of 262 percentage points of the annual sectoral growth rate.

How does Eloise tropical cyclone affected the economy?

The Eloise tropical cyclone posed  negative impacts  to the annual growth in the agriculture as well as fishing sector aggregate.

Due to the destruction as a result of the effect of Eloise tropical cyclone, points of the annual sectoral growth rate was greatly reduced.

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Which sentence is correct?
As poorer nations industrialize aggressively, natural resources are being severely critical.
As poorer nations industrialize aggressively, natural resources are being severely worsened.
poorer nations industrialize aggressively, natural resources are being severely depleted.
As poorer nations industrialize aggressively, natural resources are being severely hit.

Answers

The correct sentence is: "As poorer nations industrialize aggressively, natural resources are being severely depleted."

"As poorer nations industrialize aggressively, natural resources are being severely depleted."This sentence accurately conveys the idea that as poorer nations engage in aggressive industrialization, there is a significant reduction or exhaustion of natural resources. The verb "depleted" is appropriate in this context as it indicates the reduction or exhaustion of resources due to industrialization activities.

The other options have issues with either grammar or clarity. The first option, "natural resources are being severely critical," does not make sense grammatically. The second option, "natural resources are being severely worsened," is not clear and lacks a clear understanding of how resources can be "worsened." The third option, "natural resources are being severely hit," is less precise and lacks specificity regarding the impact on resources.

The correct sentence is: "As poorer nations industrialize aggressively, natural resources are being severely depleted."

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A human geographer studying a map of a city center has noticed that most of the restaurants are clustered around the marina. What is the human geographer studying?

Answers

This question is incomplete because the options are missing; here is the complete question:

A human geographer studying a map of a city center has noticed that most of the restaurants are clustered around the marina. What is the human geographer studying?

A. Place

B. Pattern

C. Scale

D. Location

E. Regions

The answer to this question is B. Pattern

Explanation:

In geography, a pattern is understood as an organized arrangement of elements, this can include the arrangement of natural elements such as mountains but also the arrangement of human-made elements because these are related to spatial relationships. In the case of the example described, the geographer is studying a pattern because the focus is to understand the arrangement of restaurants in the city. Also, this topic is related to how humans understand and use space.

The answer to this question is B. Pattern. I took it on the test and it was correct :)

what is the largest island in the caribbean

Answers

Answer:

Cuba is the largest island in the carribeans

Explanation:

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what is the largest island in the caribbean

Which layer of the atmosphere protects the earth from chunks of rock from space?

Answers

Answer:

The mesosphere

Answer:

the mesosphere

Explanation:

the mesosphere protects the earth from things like meteorites by burning them up before they can reach its surface

san francisco, ca and wichita, ks are located at approximately the same latitude. which of the following is true? san francisco, ca and wichita, ks are located at approximately the same latitude. which of the following is true? on average, december temperatures in san francisco tend to be lower than those in wichita. san francisco experiences several months with average temperatures below the freezing point. minimum average temperatures in wichita are consistently lowers than those in san francisco. summer temperatures in san francisco far exceed those of wichita. annual temperature ranges in wichita are greater than those in san francisco.

Answers

The annual temperature ranges in Wichita are higher than those in san Francisco despite the fact that Wichita and san Francisco are about at the same latitude.

What is meant by Annual Temperature?

The difference in temperature between the warmest and coldest months of the year can be used to calculate the mean annual temperature range. In this situation, one considers the average temperatures of the necessary months. Hence, the difference yields a range.

The difference between the mean temperatures of the hottest months, May/June, and the mean temperatures of the coldest months, January, can be used to calculate the mean annual temperature range in India.

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The largest expanse of time on the geologic time scale is the.

Answers

Answer:

Eons

Explanation:

The longest unit of geologic time is an eon, which correspond to a period of one billion years.

How do landforms affect climate? Choose all that apply Question 3 options: They lead to difference's in climates on either side of the mountain. The windward side typically has lush vegetation from increased precipitation and the leeward side experiences dry conditions. They stop all wind from blowing past them They lead to difference's in climates on either side of the mountain. The windward side typically has a dry climate and the leeward side experiences increased precipitation They cause wind to slow down They cause the wind to move faster They cause the wind to move up the mountain to higher altitudes

Answers

Changes to the land surface additionally have an effect on how water moves, and whether or not it evaporates from the soil surface, drains thru the soil, or is absorbed through the roots of plants. This is referred to as floor water balance, and influences local humidity. This affects nearby climate, considering moist air retains warmth longer than dry air.

What are 5 factors that have an effect on climate?

Hint:The 5 foremost elements which have an effect on the climate of a area are Latitude, Altitude, relief, currents and winds and distance from the sea. Complete answer: Latitude: Climate of a location depends on the latitude the place it lies.

What are the six 6 Factors affecting climate?

There are six primary herbal local weather factors: air masses and winds, latitude, ocean currents, elevation, relief, and bodies of water. Some are world factors that have an effect on all parts of Earth.

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Direction of wind in the southern hemisphere of midlatitude cyclone ​

Answers

Answer:

Because the converging winds spiral inward toward the central low pressure area, the winds rotate in a counterclockwise direction around the central low in the northern hemisphere (clockwise in the southern hemisphere)

Which weather conditions are the most difficult? ​

Answers

Answer:

these are the worst ever

Tornado: clouds, strong wind, rain, hail.

Hurricane or cyclone: strong wind, heavy rain.

Blizzard: heavy snow, ice, cold temperatures.

Dust storm: strong winds, arid conditions.

Flood: heavy rainfall.

Hail storm: cold or warm temperatures, rain, ice.

Ice storm: freezing rain.

Which of the following is likeliest to be observed in Middle Americas rimland?
A. large haciendas
B. a Euro-Amerindian cultural milieu
C. banana plantations
D. a uniformly strong Spanish heritage
E. significant influence of Islam

Answers

Answer:

C is the correct answer hope it helps u

Other Questions
1. Metabolic pathways Metabolism of ketone bodies involves several different pathways, such as the production of glucose (gluconeogenesis), the oxidation of fatty acid, and the citric acid cycle. All of these pathways are part of energy metabolism, which is composed of reactions involved in generating or storing metabolic energy. There are two major divisions in metabolism: 1. processes in which complex substances are degraded to simpler molecules accompanied by the net release of chemical energy and 2. processes concerned primarily with the synthesis of complex organic molecules, which requires a net input of chemical energy. Some pathways, such as the citric acid cycle, can serve in both functions. Oxaloacetate is an important intermediate in several of these pathways, especially the citric acid cycle. Depleted oxaloacetate, just like other citric acid cycle intermediates, has to be replenished to maintain flux through the cycle. Separate metabolic pathways serve this purpose by balancing the flow of carbon in and out of the cycle. Define the major metabolic pathways by completing the sentences. Match the words in the left column to the appropriate blanks in the sentences on the right. a. catabolic b. anabolic c. anapleroticd. amphibolic 1. A(n)____process is the process in which complex biomolecules are built up from simpler.2. The____pathway involves both catabolic and anabolic processes. 3. A(n)____process is the process that replenishes the stores of citric acid cycle intermediates. 4. A(n)____process is the process by which complex molecules are broken down to simpler ones. 2. Identify the reactants and products of the citrate synthase reaction in Step 1 of the citric acid cycle. Drag the appropriate participants to their respective bins. a. acetyl-CoAb. citratec. heatd. CoA-SHe. oxaloacetate1. Reactants 2. Products 3. Neither 3. Mechanism for elevated ketone formationAfter analyzing the role of oxaloacetate in the first step of the citric acid cycle and formation reactions of ketone bodies above, your research group proposed several possible mechanisms for increased ketone bodies levels when oxaloacetate is depleted. Based on the information about ketone body synthesis, predict which possibility is the most reasonable. A. Another molecule (unknown at this point) reacts with available acetyl-CoA to form acetone, one of the ketone bodies. B. Lack of oxaloacetate frees the enzyme, citrate synthase, to be diverted to catalyze the formation of the ketone bodies. C. Oxaloacetate is unavailable to react with acetyl-CoA, resulting in acetyl-CoA being converted into acetoacetate, one of the ketone bodies. D. Oxaloacetate is an inhibitor of the enzyme catalyzing ketone body formation, thiolase; a lack of oxaloacetate activates the enzyme and increases the production of the ketone bodies. 4. Replenish oxalate in animals What enzyme catalyzes the reversible, biotin-dependent carboxylation of pyruvate to give oxaloacetate in animals?a. pyruvate carboxylase.b. phosphoenolpyruvate carboxylase.c. malate dehydrogenase.d. phosphoenolpyruvate carboxykinase. Which best describes the claim in the passage that exercise reduces the chance of injury?A. It is an unbelievable opinion.B. It is an unbelievable fact.C. It is a believable fact. Exercise 1 Write s if the sentence is simple or c if it is compound. The parade moved from the boulevard to the park. hello help me with this question thanks in advance Four resistors rated at 200 , 330 , 2,000 , and 10,000 are connected in a series circuit. What's the total resistance of the circuit? what is the value of x in the diagram below? (iii) For the 2 x 2 matrix A with first row (0, 1) and second row (1,0), describe the spectral theorem. (iv) For a linear transformation T on an IPS V, show that Ran(T)+ = Null(T*). 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Two or more peer passengers more than triple the risk of a fatal crash with a teen behind the wheel. (True or False) based on the hbs case disney the entertainment king, which we discussed in class, which of these anti-imitation mechanisms (imitation barriers) exist for disney and prevent its core competencies from being copied by competitors? Wanda Runs A Home Laundry Service, Kwicky Washy Ltd, Where Customers' Laundry Is Collected, Washed, Ironed, And Delivered Back To Them For A Set Charge Per Bag. The Service Is Offered To Customers Only Within A Limited Radius Of Workshop City Centre. The Following Outgoings Are Associated With Her Business: - Petrol Costs Average R2 Per Customer. - The student submitted image, transcription available below Show transcribed image text Expert Answer 1st step All steps Final answer Step 1/3 In cost accounting, there are two main types of co... View the full answer answer image blur Step 2/3 Step 3/3 Final answer Transcribed image text: Wanda runs a home laundry service, Kwicky Washy Ltd, where customers' laundry is collected, washed, ironed, and delivered back to them for a set charge per bag. The service is offered to customers only within a limited radius of Workshop City Centre. The following outgoings are associated with her business: - Petrol costs average R2 per customer. - The average customer sends two bags to the laundry service. - The electricity costs for washing and drying are R1 per bag, and detergent costs 50 pence per bag. Wanda employs casual staff to handle, fold, and iron the laundry. They are paid R8 per hour, and each bag takes 1 hour, on average, of their time. - These staff are paid only for the hours they actually work. Wanda acts as delivery driver, bookkeeper, and salesperson. She is paid a salary of R22 000 per annum. - The delivery van depreciates at the rate of R4 000 per annum and the laundry machines (washers and dryers) at 20 pence per bag washed. - Other van expenses include tax, insurance, and maintenance and amount to R2 000 per annum. Required: 1.1 Identify which of the costs are fixed and which are variable. (8 marks) 1.2 Calculate the variable cost per bag of laundry laundered. (6 marks) Penelope has a birdhouse that is 4 and 9/10 feetabove the roof of her garage. She has a secondbirdhouse that is 5.36 feet below the roof ofher garage. What is the distance between thebirdhouses? when prove that all positive integers less than 4 are prime numbers by showing that 1, 2 and 3 are prime numbers, which of the following kinds of proof are we using?Proof by contradictionTrivial proofProof by inductionExhaustive proof What is biodiversity and why do weneed to preserve biodiversity?