Qucstion 16: What sort of events can wipe out life on a planet? How does the likelihood of extinction for life vary depending upon a star system's distance from the center of the Milky Way?
Answers
Various events like Asteroid impacts,Volcanic eruptions,Gamma-ray bursts and Nearby supernovae can potentially wipe out life on a planet, including asteroid impacts, volcanic eruptions, gamma-ray bursts, and nearby supernovae. The likelihood of extinction for life can vary depending on a star system's distance from the center of the Milky Way.
Here's the description of each event
1. Asteroid impacts: Large asteroid collisions can lead to mass extinctions by causing massive fires, tsunamis, and throwing debris into the atmosphere, blocking sunlight and affecting the climate.2. Volcanic eruptions: Massive volcanic eruptions can release large amounts of ash and gas into the atmosphere, causing climate changes, and affecting ecosystems.
3. Gamma-ray bursts: These powerful bursts of energy from distant stars can release intense radiation that can damage the atmosphere and harm living organisms.4. Nearby supernovae: When a massive star explodes in a supernova, it releases a tremendous amount of energy and radiation, which can be harmful to nearby planets.The likelihood of these events occurring varies depending on the location of a star system within the galaxy. Star systems closer to the center of the Milky Way have a higher likelihood of encountering these threats, as there is a higher density of stars and a greater chance of asteroid collisions or supernovae occurring nearby.
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Related Questions
Im so confused. I need help badly.
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Answer:
B
Explanation:
They are rubbing past each other.
Answer:
Bbbbbbbbbbbbbbbbbbbbbbb
Which of the following is a long-term consequence of mining on the Earth? a. Erosion b. An open pit c. Sedimentation d. All of the above Please select the best answer from the choices provided A B C D.
Answers
Answer:
All of the above.
Source: Quizlet
All of the foregoing is a long-term impact of mining on the planet. Thus, choice (D) is the appropriate one.
What do you know about Erosion ?Erosion is the result of surface processes (such wind or water flow) that remove soil, rock, or dissolved material from one area on the Earth's crust and then move it to another region where it is deposited. Weathering doesn't involve movement, unlike erosion, which does.
Physical or mechanical erosion is the process of removing rock or soil as clastic sediment, as opposed to chemical erosion, which is the process of removing rock or soil from a location by dissolving it.
A few millimeters or thousands of kilometers may be enough distance for eroded sediment or solutes to go.
Agents of erosion include rainfall, bedrock wear in rivers, coastal erosion by the sea and waves, glacial plucking, abrasion, and scour, area flooding, wind abrasion, groundwater processes, and mass wasting.
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As you ascend in elevation, the air generally becomes cool and heavy. warm and less dense. warm and heavy. cool and less dense.
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Answer:
As you ascend in elevation, the air generally becomes cool and less dense.
describe the political actions that led to successful conservation in both stories. print
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The political actions that led to successful conservation in both stories are as follows: Political action refers to the strategies used by the government to deal with environmental conservation. Several conservationist policies and laws have been implemented in different countries to protect the environment, biodiversity, and natural resources.
These policies and laws are implemented by the government agencies responsible for environmental management, and they involve the stakeholders, community groups, and other interested parties.The Endangered Species Act (ESA) of 1973 in the United States was a vital political action that led to the successful conservation of several species, including the bald eagle, peregrine falcon, and gray wolf. The ESA law prevented the extinction of these species by protecting them and their habitats, prohibiting trade, and implementing other management measures. The ESA law provided a framework for conserving the ecosystems and the species dependent on them.In Kenya, the wildlife conservation act of 1989 was a vital political action that led to the successful conservation of several wildlife species, including elephants, rhinos, and lions. The act established protected areas, wildlife reserves, and community conservation areas where the wildlife could be conserved. The act also prohibited hunting, trade, and poaching of wildlife species. These measures have helped to reduce wildlife poaching, increase tourism, and conserve biodiversity.In conclusion, the political actions that led to successful conservation in both stories were the establishment of laws and policies that aimed to protect the environment, biodiversity, and natural resources. These policies and laws were implemented by government agencies and involved the stakeholders, community groups, and other interested parties.
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Which process removes excess water from sediment and can reduce the volume of the sediment by 40%?.
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Dewatering is the process that removes excess water from sediment and can reduce its volume by 40%.
Dewatering is the process of removing extra water from sediment, which can lower the volume of the sediment by 40%. Dewatering is frequently used to remove water from saturated or water logged sediment or soil in the construction, mining and other industries.
To separate and extract the water content, it uses a variety of techniques like pumping, draining or applying mechanical pressure to the sediment. Dewatering can significantly reduce the volume of the sediment and increase its stability making it more suitable for construction or other uses.
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which is the best definition for the term stratigraphy? question 6 options: a device that locates information that is located underground the relative dating of artifacts the study of the layers of earth that have been deposited over a long period of time a technique that involves the counting of the growth rings of a tree
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hello
the answer to the question is:
the study of the layers of earth that have been deposited over a long period of time
State one reason why the increase of carbon dioxide may harm the environment
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Explanation:
Global warming
Extra carbon dioxide in the atmosphere increases the greenhouse effect. More thermal energy is trapped by the atmosphere, causing the planet to become warmer than it would be naturally. This increase in the Earth's temperature is called global warming
Which of the following is the internal heat energy during the early formation of the Earth?
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The planet produces heat energy . The temperature rises as you move deeper. Temperatures soar to 750°C about 25 km below the surface, and are reportedly 4,000°C near the core.
Heat energy is produced by the planet. Moving deeper causes the temperature to increase. At 25 kilometers below the surface, temperatures at the core are thought to be 4,000°C. Hot springs have been used by people since antiquity, and we currently use geothermal technology to heat our apartments. Geysers, earthquakes, and volcanic eruptions are all indications of the Earth's core power source.
The term "radioactive decay" refers to the method by which Earth generates heat. It involves the breakdown of naturally occurring radioactive materials within Earth, such as uranium, for instance. Because it generates heat during its disintegration, uranium is a unique type of element. This heat prevents Earth from entirely cooling off.
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In which type of rock would a scientist most commonly find a fossil of a triceratops?
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Due to their location in shale and siltstone that has volcanic ash radiometrically dated at 70 million years ago, the Triceratops dinosaur fossils are around 70 million years old.
Usually, sedimentary rocks include fossils, however rarely, low-grade, fine-grained metamorphic rocks will as well. It's possible that the fossils have been removed, leaving molds in the surrounding rock, or that the molds have been filled with different materials in the past, creating castings of the original fossils. This well-known ceratopsian, or horned dinosaur, was a herbivore despite having a fearsome look. One of the final non-avian dinosaurs to emerge before the catastrophic extinction catastrophe that took place 66 million years ago was Triceratops, which is Latin meaning "three-horned face." Researchers use some kind of clock to ascertain the date when a rock or fossil was generated in order to calculate its age. Geologists frequently rely on the accuracy of radiometric dating techniques, which are based on the natural radioactive decay of certain elements like potassium and carbon.
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Moving away from its headwaters/source, the flow of a stream usually becomes more a. chaotic b. laminar c. turbulent d. competent
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Moving away from its headwaters/ source, the flow of a stream usually becomes more turbulent. The answer is c.
As a stream or river flows downstream from its source, several factors contribute to the change in the nature of its flow. One of the key factors is the increase in the volume of water, which leads to increased turbulence. As the stream accumulates more water from tributaries and runoff, the flow becomes faster and more turbulent.
Turbulent flow is characterized by irregular and chaotic movement of water particles. It involves swirling, eddying, and mixing of the water.
Turbulence occurs when the flow velocity exceeds a certain threshold and is influenced by various factors such as the slope of the stream channel, the roughness of the streambed, and the presence of obstacles like rocks or vegetation.
Hence, c. is the right option.
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what region has about half of the world’s known oil reserves?
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The Middle East region is estimated to hold about half of the world's known oil reserves.
This region is home to some of the world's largest oil-producing countries, including Saudi Arabia, Iran, Iraq, and the United Arab Emirates. Oil was first discovered in the Middle East in the early 20th century, and since then, the region has become a major player in the global oil industry. The abundant reserves of oil in the Middle East have made the region a key factor in determining the global oil market, as well as a source of political tension and economic power.In Saudi Arabia, the world's largest oil producer, oil accounts for over 90% of the country's total exports and nearly 70% of its gross domestic product. Other major oil producers in the Middle East include Iran, Iraq, and the United Arab Emirates, which also have substantial reserves of oil.The oil reserves in the Middle East are located mainly in the Persian Gulf, with major fields located in Saudi Arabia, Iran, and Iraq.
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State a true conclusion. 1) If a triangle has a right angle, then the triangle is a right triangle. 2) Triangle ABC is not a right triangle.
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True conclusion is Triangle ABC is not a right triangle, the fact that triangle ABC is not a right triangle does not lead to the true conclusion that the triangle does not have a right angle..
The conclusion that can be stated is: "Triangle ABC is not a right triangle." This conclusion is based on the given information that the triangle ABC is not a right triangle. In geometry, a right triangle is defined as a triangle that has one angle measuring 90 degrees.The given statement in option 1 states a general rule or theorem about right triangles. It states that if a triangle has a right angle, then it is a right triangle. However, the given conclusion in option 2 does not contradict this rule. It simply states that the specific triangle ABC is not a right triangle, without making any claim about whether it has a right angle or not.It is important to note that the conclusion in option 2 is specific to the triangle ABC and does not contradict the general rule stated in option 1. In other words, there may be other triangles that have a right angle and are classified as right triangles, but the specific triangle ABC does not fall into this category.The complete question should be Does the fact that triangle ABC is not a right triangle lead to the true conclusion that the triangle does not have a right angle?
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What are the ideal conditions for a strong radiation inversion?
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A strong radiation inversion occurs when the temperature in the lower atmosphere increases with height.
This occurs when the surface is cooling rapidly due to radiative losses, but the temperature above is being warmed by the trapping of longwave radiation.
Ideal conditions for a strong radiation inversion include clear skies, light winds, and calm conditions, as these allow the surface to cool rapidly and the inversion to form.
The inversion can be disrupted by the mixing of air by winds, cloud cover, or precipitation, which can break down the temperature gradient and lift the inversion layer.
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what is a valente shell
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Answer:
Explanation:
: the outermost shell of an atom containing the valence electrons.
a valente shell is the outermost shell of an atom containing the valence electrons.
saac Newton believed that light was made of
Answers
Answer:
tiny particles
Explanation:
In his theory, Newton stated that light was composed of very tine particles having a certain mass and these particles followed the law of physics just like any other object having mass would.
move your sky back to fort collins, then find polaris. 7) what is the latitude of fort collins, co, and what is the altitude of polaris in its sky? 8) what is the latitude of panama city, panama, and what is the altitude of polaris in its sky? 9) what is the latitude of minsk, belarus, and what is the altitude of polaris in its sky? 10) what are two ways that polaris can be useful for navigation in the northern hemisphere?
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The latitude of Fort Collins is 40.5853° N, 105.0844° W and the altitude of Polaris in its sky is at 40 feet.
Latitude expresses the separation from the equator to the north or south. Latitude lines go east and west, parallel to the equator, beginning at the equator (0 degrees latitude). Degrees north or south of the equator, up to 90 degrees at the North or South poles, are used to measure lines of latitude.
Along our planet's rotating axis, Polaris, also referred to as the North Star, is located nearly precisely above the north pole of Earth. The Earth spins like a top around this line.
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what seafloor structures you would encounter if you could walk underwater from the United States to Europe
Answers
Answer:
The seafloor structures that will be encountered are shelf, slope, rise, abyssal plain, seamounts, and mid-ocean ridge/rift valley.
Explanation:
The Atlantic Ocean is the second-largest ocean in the world. It is divided into two subdivisions, the North Atlantic Ocean and South Atlantic Ocean. The North Atlantic subdivision is the one located between North America on one side, and Europe and Northern Africa on the other side.
If we were to walk from North America to Europe on the ocean floor, then the first structure we will encounter will the relatively wide continental shelf. Next will come to the slope and rise where the seafloor sharply becomes much deeper. Once we reach the bottom of the ocean we will encounter the abyssal plain, and in the abyssal plain, there are also seamounts sharply rising above the seafloor. In the central part of the ocean, we will encounter the mid-ocean ridge, which is where the rift valley is located. After that, we will encounter the same structures that we already encountered just in a reverse manner, with abyssal plain and seamounts coming first, then sharp elevation as we come to the rise and slope, and a relatively small continental shelf.
If you walked underwater from US to Europe, the seafloor structures that you would encounter are:
Continental shelfMid ocean ridgesOcean trenchesSlopesWhat are seafloor structures?These are the features that the oceans are known to have. Some of the features includes:
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Reports from the Curiosity rover showed that the escape velocity for gas molecules on the newly discovered planet is 9 km/s, and the gases present are carbon dioxide and nitrogen. Is this information enough to determine if the atmosphere of the planet is suitable for human life? Why or why not? Your answer should include the factors affecting the ability of the planet to retain an atmosphere and how temperature affects velocity.
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No, the provided information is not enough to determine if the atmosphere of the planet is suitable for human life.
The escape velocity of gas molecules is only one factor in determining whether an atmosphere is suitable for human life. Other crucial factors include the composition of the atmosphere, atmospheric pressure, presence of essential gases (such as oxygen), temperature, and the ability of the planet to retain its atmosphere. Escape velocity refers to the minimum velocity required for a gas molecule to escape a planet's gravitational pull. However, it does not provide information about the overall composition and stability of the atmosphere. For an atmosphere to support human life, it would typically require a suitable combination of gases, including oxygen, to sustain respiration. Additionally, factors such as atmospheric pressure and temperature are crucial, as they affect the overall habitability of a planet. Temperature plays a significant role in determining the velocity of gas molecules. Higher temperatures generally result in higher velocities, which can increase the likelihood of gas molecules escaping the planet's gravitational pull. Therefore, the temperature conditions of the planet are important considerations when assessing the suitability of the atmosphere for human life. In conclusion, while the escape velocity of gas molecules provides some information about the potential for gas escape, it is insufficient to determine the overall suitability of the atmosphere for human life. A comprehensive analysis of various factors, including composition, pressure, temperature, and stability, is necessary to assess habitability.
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Landforms with low relief and high elevation are called...
Answers
Answer:
Plateaus
Explanation:
Plateaus are areas with low relief and high elevations; the United States has a plateau called the Colorado Plateau in the southwestern part of the country. Mountains are land-forms with high relief and high elevation; the United States has two main mountain ranges—the Appalachian Mountains and the Rocky Mountains.
Part B: Developing Your Arguments Claims form the basis of an argument. They’re detailed statements that you must prove. Consider how you’ll support your claims with evidence using credible sources such as My NASA Data and NASA Climate Time Machine. You can use other reliable sources as well. Write down two or three claims for your argument and include evidence to support each of your claims. Cite the sources for your evidence using a URL address or book or journal title. 100 points
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Answer:
People used letters or postcards before the internet was created to communicate with their friends and family. Around the turn of the century, people began using the internet and discovered that they could quickly interact with one another .
Explanation:
Sediments deposited directly by glaciers as they melt are characterized by ____________.
a. uniformly coarse grain size
b. uniformly fine grain size
c. an absence of sorting
d. graded bedding
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The correct answer is c. an absence of sorting. Sediments deposited directly by glaciers as they melt are known as glacial till or glacial drift.
These sediments typically exhibit an absence of sorting, meaning that the particles are not organized or separated by size. Glacial till is a mixture of different-sized particles, including rocks, boulders, sand, silt, and clay, that were transported and deposited by the glacier.
The lack of sorting occurs because glaciers can transport a wide range of sediment sizes and deposit them together as the ice melts. This results in a mixture of different-sized particles within the deposited sediment, without distinct layering or sorting based on grain size.
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in 2015, researchers concluded that enceladus's subsurface ocean is probably global, instead of just being restricted to the south polar region. what had the cassini spacecraft found, that led them to their conclusion?
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In 2015 experimenters concluded that enceladus's subterranean ocean is presumably global rather of just being confined to the south polar region.
The glamorous field of Enceladus is so strong that it can only be explained by a global ocean of salty water under the face.
This glamorous field is the reason why scientist decided there must be an ocean beneath the face.
The Enceladus does not absorb water from Saturn and it doesn't have lava spewing valcanos on its face. And also only the face of Enceladus is firmed . Beneath it's face, its not firmed .
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Name two points that are collinear with P
Answers
Answer: K, N.
Explanation:
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how do personels respond during an earthquake
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Personnel should respond during an earthquake by following these steps: Drop, Cover, and Hold On to protect against falling objects and reduce injury risks.
During an earthquake, personnel should follow certain steps to ensure their safety.
1. Drop, Cover, and Hold On: The first step is to drop to the ground, take cover under a sturdy piece of furniture, and hold on until the shaking stops. This position protects against falling objects and reduces the risk of injury.
2. Evacuate if Necessary: If there is a clear and safe path, personnel should evacuate the building, using stairs instead of elevators. They should avoid windows, glass, and exterior walls.
3. Assist Others: Personnel should also help others who may need assistance, such as the elderly, disabled, or injured. They should prioritize the safety and well-being of everyone around them.
Personnel responding during an earthquake should drop, cover, and hold on to protect themselves. If it's safe, they should evacuate the building, moving to an open area away from potential hazards.
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My last assignment and my last bit of points, thank you to everyone thats helped :)
You have explored how the Federal Reserve carries out monetary policy. You also know that monetary policy involves the money supply and interest rates. Now, it is time for you to see how effective (or not) monetary policy is in action.
1) You will begin by writing down the definition of "monetary policy."
2) The specific action that you will explore is expansionary monetary policy. This is when the Federal Reserve increases the money supply. Explain how increasing the money supply affects interest rates. Then explain how expansionary monetary policy affects consumption, investments, and the growth of the economy.
3) Now it is time to look at a specific monetary policy. You already know about the recession that began at the end of 2007. The Federal Reserve addressed this economic downturn by carrying out expansionary monetary policy. Using the provided document titled "Primary Rates," find the primary interest rate on November 1, 2007. The primary rate is the interest rate available to financially sound banks. To find the primary rate on November 1, 2007, go to the "Primary Rate" column and the row marked "01-Nov-07" in the Boston column. Write down this interest rate. Next, locate the primary rate on October 29, 2008 (or "29-Oct-08" in the Boston column). This was the primary rate almost one year later. Write down this rate. Examine the interest rates in between these dates.
Click here for the "Primary Rates" spreadsheet.
4) In 1 or 2 sentences, describe the trend (or general direction) in the interest rates between November 1, 2007, and October 29, 2008, by answering the following questions: Are the interest rates increasing or decreasing? Does the trend indicate that the Federal Reserve is increasing or decreasing the growth of the money supply during this time?
5) Next, examine consumption, investments, and Gross Domestic Product during 2008 and 2009, using the table below. The table shows the percentage changes in each area. The changes are shown in quarters (or four parts) for each year. For example, the first quarter is January, February, and March.
In 2 or 3 sentences, explain the trend in consumption, investments, and Gross Domestic Product. Are these areas generally increasing or decreasing during this time? In 1 or 2 sentences, explain if these trends show that expansionary monetary policy was effective in 2008-2009.
6) Finally, examine consumption, investments, and Gross Domestic Product for three quarters in 2010 using the table below.
In 2 or 3 sentences, explain the trend in consumption, investments, and Gross Domestic Product. Are these areas generally increasing or decreasing during these quarters? In 1or 2 sentences, explain if these trends show that expansionary monetary policy was effective beginning in 2010.
7) There were other actions (including expansionary fiscal policy) that occurred during these times and could also have contributed to economic performance. For this project, assume that the changes in consumption, investments, and GDP occurred (at least in part) from monetary policy. In 3 or 4 sentences, compare the trends in 2008-2009 to the trends in 2010. Next, provide an explanation for the differences in these trends, as by discussing the role of timing or confidence.
Answers
Monetary policy involves the money supply and interest rates. Expansionary monetary policy increases the money supply, which can affect consumption, investments, and economic growth.
Monetary policy refers to the actions taken by a central bank, such as the Federal Reserve in the United States, to control the money supply and interest rates in the economy.
Expansionary monetary policy is when the central bank increases the money supply, which can lower interest rates. This can stimulate consumption and investment, leading to economic growth.
Examining the interest rates and economic indicators during the recession of 2008-2009 and the recovery in 2010 can provide insight into the effectiveness of expansionary monetary policy.
Other factors, such as fiscal policy and consumer confidence, may also play a role in economic performance.
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Metamorphism can transform a shale composed of clay (Diagram A) into a metamorphic rock containing many different minerals (Diagram B). The metamorphism of a pure quartz sandstone, however, yields a metamorphic rock containing only quartz. Why? Choose one: A. Quartz in a shale is different than quartz in a sandstone, so it will behave differently under metamorphic conditions. B. The sandstone is made up only of quartz (silicon and oxygen), and there are no other combinations these elements can be arranged into except polymorphs. C. Quartz is a very resistant mineral and does not undergo any metamorphic processes when subjected to intense heat and pressure.
Answers
Metamorphism can transform a shale composed of clay (Diagram A) into a metamorphic rock containing many different minerals (Diagram B). The metamorphism of a pure quartz sandstone, however, yields a metamorphic rock containing only quartz because Quartz is a very resistant mineral and does not undergo any metamorphic processes when subjected to intense heat and pressure. The correct option is c.
The process of metamorphism involves changing the protolith, an existing rock, into a new rock with a different mineral composition or texture. The rock remains essentially solid throughout the metamorphism process, which happens at temperatures above 150 °C (300 °F), as well as frequently at high pressures or in the presence of chemically active fluids. Weathering and diagenesis, which are changes that occur at or near the Earth's surface, are not the same as metamorphism.
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idk how to do this
Answers
Answer:
A 80 40
B 0 40
C 120 160 D same as c
Explanation:
hopefully this is helpful
Esther's company has been contracted to lay carpet in a room at a new observatory. The floor plan for the room is in the shape of a regular pentagon and has measurements as shown in the diagram below.
and explain plis
Answers
9514 1404 393
Explanation:
The figure shows a regular pentagon with the radius and the length of one side given. The Pythagorean theorem to find the missing side of the right triangle whose given sides are the pentagon radius and half the side length. That missing side is the apothem of the pentagon. As with any regular polygon, the area of this pentagon will be half the product of the perimeter and the apothem. The perimeter of a pentagon is 5 times the side length. All dimensions are in feet, so the area will be in square feet.
__
Additional comment
The working out was not requested, but here it is, anyway.
a = √(40.8² -(48/2)²) = √1088.64 ≈ 32.99 . . . feet
P = 5(48 ft) = 240 ft
A = (1/2)Pa = (1/2)(240 ft)(32.99 ft) = 3959.3 ft²
Note that the radius has been rounded down to the nearest tenth. If the full-accuracy value were used, the area would be found to be 3963.98 ft².
If an idea cannot be disproven by some possible observation or test, can such idea be supported by science? Explain. Most answers say for it to be proven it needs to be disproven as well, I can't seem to understand.
Answers
Answer:
In science, an idea is considered to be supported by evidence if it is consistent with the available observations and can be tested through scientific experimentation or other forms of empirical investigation. This means that an idea can be considered scientific if it is open to being tested and potentially disproven through scientific methods.
For an idea to be considered scientific, it must be testable and falsifiable. This means that there must be some possible observation or test that could potentially disprove the idea. This is an important aspect of the scientific method, as it allows scientists to evaluate the validity of an idea by attempting to disprove it.
If an idea cannot be tested or potentially disproven through scientific means, it is not considered to be scientific. This does not necessarily mean that the idea is not true or valid, but rather that it cannot be evaluated using the scientific method.
For example, an idea that cannot be tested or potentially disproven might be a philosophical or metaphysical belief, such as the existence of a deity or the concept of an afterlife. While these ideas may be deeply held and believed by some, they cannot be tested or evaluated through scientific means, and therefore are not considered to be scientific.
Very Short Answer:
Define standard meridian?
Answers
Answer:
a circle of constant longitude passing through a given place on the earth's surface and the terrestrial poles
I HOPE IT IS HELPFUL
Answer:
Standard Meridian is the longitude which is used to describe time of a country. It ideally should be the same for the whole country and all the places in a country should follow this same time.
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