how would you describe the composition of this rock? (hint: this rock contains primarily plagioclase feldspar and pyroxene)

Answers

Answer 1

Almost all rocks are minerals, but different rocks contain different mixtures of minerals. There are three main groups of rocks: sedimentary, igneous and metamorphic rocks.

Members of the plagioclase group are the most common rock-forming minerals. They are important for most of the dominant minerals in the igneous rocks of the earth's crust. They are the main components of many intrusive and extrusive igneous rocks, including granite, diorite, gabbro, rhyolite, andesite, and basalt. Rocks that contain many dark silicate materials and plagioclase in feldspar are basaltic in composition. Basalt rock contains minerals of the pyroxene group, which give the minerals their dark color.

It can be as light as dark green or as dark as black. Plagioclase (feldspar) is widespread and common in many igneous and metamorphic rocks, and to a much lesser extent in some immature sedimentary rocks. In general, the keys to identifying plagioclase are its absence (color), low birefringence, and  twinning.

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Related Questions

Why people living in bhutan celebrate blessed raining day in autumn and people in Australia celebrate in spring

Answers

Answer:

The two countries are in different hemispheres.  

Explanation:

Australia is in the Southern Hemisphere and Bhutan is in the Northern Hemisphere.

If a geostationary satellite is seen over Texas at lunchtime, which state will it appear to be over at dusk?

Answers

Answer:

It Would be Texas be it says Stationary which means it Stays in the same place so 100% correct Promise

Explanation:

Permafrost and mosses, lichens, and wildflowers are common in the a. tundra climate. b. subtropical climate, c. temperate climate. d. ice cap climate​

Answers

Answer:

a. tundra climate

Explanation:

Permafrost and mosses, lichens, and wildflowers are common in the tundra climate

In the tundra climate, mosses, lichens, and wildflowers are widespread. option (A) is correct

What is climate?

The climate is the long-term activity of weather in a particular area. Weather can change from hour-to-hour, day-to-day, month-to-month, or even year-to-year. A region's weather patterns, usually tracked for fewer than many years, are considered its climate.

Tundra is a type of biome in physical geography climate where tree development is hampered by subfreezing temperatures and brief growing seasons. The word "tundra" is derived from the Kildin Sámi word which means "uplands" or "treeless mountain region," in the Russian language.

A polar climate zone with short, chilly summers and extremely cold winters that can be found in northern Alaska, Canada, and Russia. , a layer of permanently frozen earth, is present in the tundra.

Therefore, option (A) is correct.

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Which of the following terms is not a name for a disadvantaged squatter settlement in a city?
A. a shantytown
B. a favela
C. a barrio
D. an exurb
Please select the best answer from the choices provided.

Answers

I believe the answer is either A or D. However, I think D sounds the most fitting but like i said, it could be either one. :)

Answer:

D) an exurb

Explanation:

Which are examples of economic interdependence?
Select all that apply.

A business uses another business to maintain its machinery.

A company purchases parts for its goods from another business.

A farmer grows her own food.

A business builds all the parts needed for a product
roduct.

An individual buys food from the local grocery store.

A company maintains its own computer systems.

Answers

Examples of economic interdependence include A company purchases parts for its goods from another business.

What is a good illustration of economic dependence?

Examples of Economic Interdependence

Because of this, each sector is dependent on other industries to produce its components. For instance, the manufacturing of many of the components used in automobiles is dependent upon the steel and computer industries. Wal-Mart, the biggest chain retailer in the world, is another illustration.

How are the economy and business interdependent?

The primary elements of economic interdependence include countries' reliance on other nations for the production of specific goods as well as businesses' reliance on external suppliers for their goods and services

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Which of the following is most likely to occur at a divergent boundary?

Mountain formation

Seafloor spreading

Faults

Subduction zones

Answers

Answer:

Sea Floor Spreading

Explanation:

Answer:

its Faults

Explanation:

WILL MARK BRAINLYEST!!!!



Analyze the ancient world civilizations timeline above. At which year should the following event be placed?

The Olmec civilization emerged in Mesoamerica.
A.
2500 BCE
B.
1200 BCE
C.
100 BCE
D.
900 CE

Please select the best answer from the choices provided
A
B
C
D

Answers

Answer:

The answer is 1200 BCE

Explanation:

Answer:

b. region 2

Explanation:

approximately what percentage of south asia’s people live in areas defined as urban?

Answers

As of my knowledge cutoff in September 2021, approximately 35% of South Asia's population lives in areas defined as urban.

South Asia is a region that includes countries such as India, Pakistan, Bangladesh, Nepal, Sri Lanka, and Bhutan. Urbanization in South Asia has been significant over the past few decades, with a growing number of people migrating from rural areas to cities in search of better opportunities, education, and improved living standards. The region's urban population has been steadily increasing due to factors like population growth, industrialization, and urban development.

However, it's important to note that the urbanization rate may vary among countries within South Asia. For instance, countries like India and Pakistan have a higher proportion of their populations living in urban areas compared to countries like Nepal and Bhutan, where the urbanization process is relatively slower.

It's worth mentioning that the exact percentage may have changed since my last update, so it is advisable to refer to the latest available data for the most accurate figures.

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Which of the following is an equivalent form of the expression 35m − 14mx ?21x

21(m − mx)

7m(5 − 2x)

7(1 − x)

Answers

Answer:

IS A

Explanation:

Because you need to divide the quotient of the field of the amount of variables you have and then substrsct the quantity but then divide again.

We are required to find the equivalent form of the expression 35m − 14mx

The equivalent form of the expression 35m − 14mx is 7m(5 - 2x)

Given:

35m − 14mx

find the common factors of 35m and 14mx

The common factors of 35m and 14mx is 7 and m

Therefore,

35m − 14mx

= 7m(5 - 2x)

Check:

7m(5 - 2x)

= 35m - 14mx

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Which best summarizes the development of the geologic time scale?

Answers

The development of the geologic time scale best summarizes the chronological categorization of Earth's history from the beginning to the present day.

The geologic time scale, which is based on relative dating, comprises eons, eras, periods, and epochs, which are defined by significant geological or biological events or critical points in Earth's history.The geological time scale is a chronological categorization of the history of the earth from its origin to the present.

The geological time scale is a sequence of time intervals that divide Earth's history. These intervals are eons, eras, periods, epochs, and ages. These time intervals are divided based on significant geological or biological events that have occurred in the past. It is an essential tool for scientists to understand the evolution of our planet and its inhabitants.

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most of the world's deserts are located at latitudes where group of answer choices cold, dry air moving toward the poles descends. hot, dry air moving toward the equator rises. cold, dry air moving toward the equator descends. hot, dry air moving toward the poles rises.

Answers

Most of the world's deserts are located at latitudes where hot, dry air moving toward the equator rises. As the air rises, it cools and forms clouds, leading to precipitation. This is why equatorial regions typically receive high levels of rainfall.

However, by the time the air reaches about 30 degrees latitude, it has cooled and become denser, causing it to descend. As the air descends, it warms and becomes dry, resulting in low levels of precipitation and arid conditions.

This is why many of the world's deserts, such as the Sahara and the Mojave, are located around 30 degrees latitude. Other factors, such as ocean currents and topography, can also contribute to the formation and location of deserts.

Overall, the combination of factors that contribute to desertification is complex, but understanding the role of air circulation patterns is an important component of this process.

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A very well-sorted sandstone with large-scale cross-bedding indicates the sand was likely Multiple Choice deposited by water in a meandering river system. O deposited by the wind in dunes. deposited by water in a braided river system. O O deposited by a turbidity current offshore.

Answers

The meandering nature of the river system in this case is suggested by the overall characteristics of the sandstone. Turbidity currents offshore can also deposit sediments, but they would not produce the cross-bedding patterns seen in this sandstone.

The presence of large-scale cross-bedding in a well-sorted sandstone is a good indication of the conditions under which the sand was deposited. In this case, the sandstone was likely deposited by water in a meandering river system. This is because meandering rivers often have currents that can sort sediments and create cross-bedding patterns. While wind can also create cross-bedding in sand, the well-sorted nature of the ]suggests that water was the more likely depositional agent. Other types of river systems, such as braided rivers, can also produce cross-bedded sandstones. However, the meandering nature of the river system in this case is suggested by the overall characteristics of the sandstone. Turbidity currents offshore can also deposit sediments, but they would not produce the cross-bedding patterns seen in this sandstone.

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Explain the earth........

Answers

earth is a planet humans live in duh.

what caused eastern north america and europe to plunge into an ice age in the blockbuster hit the day after tomorrow? group of answer choices deep ocean currents moved faster surface currents slowed down deep ocean currents slowed down surface currents reversed direction

Answers

Surface currents slowed down caused eastern north america and europe to plunge into an ice age in the blockbuster hit the day after tomorrow.

The fastest and most constant component of ocean water are ocean currents. The variations in temperature and salinity that exist in the various seas and oceans around the world, in addition to other factors like the Earth's rotation, are the root causes of these flows.

Ocean currents are influenced by a number of factors, one of which is Earth's rotation. Ocean waters rotate and flow in different directions depending on their geographic location because of the Coriolis force. As a result, rotation has a smaller impact on the force of water movement at the Equator.

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Why are herbivores an exception to the rule that consumers have to be bigger than their prey/resource? Because herbivores are very slow animals Because plants come in different bite sizes Because plant food more nutritious than meat Because herbivores always kill plants Question 4 1 pts Why are wolfs (and humans) are an exception to the Eltonian rule? Wolfs are omnivorous and feed on plants as well. Wolfs are much more numerous than their prey Wolf are often smaller than their prey Wolfs are hunting solitarily

Answers

Wolfs are an exception to the Eltonian rule due to their ability to survive through an omnivorous diet, with both plant and animal food as their resource.

This has allowed wolves to become much more numerous than their prey, despite being typically smaller than them in size. Additionally, wolves differ from other predators because of their ability to hunt solitarily, which gives them a unique advantage in their search for prey.

Lastly, due to their opportunistic feeding behavior, wolfs are also able to take advantage of a variety of plants and animals that are more abundant and easier to capture than their typical prey. Overall, this hunting strategy allows wolves to survive despite the Eltonian rule, giving them a great evolutionary advantage.

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An unconformity that results when new sediments are deposited on eroded horizontal layers is a(n) _____

A. angular unconformity

B. disconformity

C. crosscut unconformity

D. nonconformity

Answers

Answer:

disconformity

Explanation:

A fault or intrusion is younger than the rock it cuts through, according to. Law of cross-cutting relationships. The age of a rock in years is known as.

permeability is a function of how interconnected open spaces are within a rock mass. group of answer choices true false

Answers

The statement "Permeability is a function of how interconnected open spaces are within a rock mass" is true.

What is permeability ?

Permeability is a measure of how easily fluids such as water can flow through a porous medium like a rock. The interconnectedness of open spaces or pores within a rock mass is a crucial factor in determining its permeability.

If the pores are well connected and form a network of channels through which fluids can flow easily, the rock will have a high permeability. Conversely, if the pores are isolated and not well connected, the rock will have a low permeability and fluids will not be able to flow through it easily.

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Part 1 Answer the following questions. Place your responses in the essay box below for Part 1. What type of map is this? Are there any faults on the map? If so, what types? Around the Salt Lake, what is the geologic age of the area and what type of geologic unit is found there? South of Richfield, what type of rock is most prevalent? Which geologic area or rock is the oldest? Which geologic area or rock is the youngest? Are there any intrusive rocks found in Utah? And where? In the Green River and Price area, what fossil fuel would you expect to find there?

Answers

The type of map represented in the picture is a geological map. Geological maps show features such as soil and rock type and structural features such as faults. There are numerous faults represented on the map The main type observed are thrust faults. The area around Salt Lake is approximately between Quaternary to late Tertiary based on the map. The main geologic unit in this area is composed of alluvial, glacial and lake sediments. Middle Tertiary volcanic rocks can be found south of Richfield. Pre-Cambrian metamorphic (narrow outcrop east of the Great Salt Lake) and igneous rocks are the oldest represented on the map. The youngest rocks are Quaternary salt flats found mainly south-west of the Salt Lake. Intrusive rock outcrops can be found in different areas on the map. Outcrops can be observed southeast of Richfield, south-east of Ceder Clay and North of Lake Powell. Coal is the fossil fuel type present in the Green River and Price area.

Solve the linear equation x + 3 + x - 8 + x = 55. State the property that justifies your first step and why you chose it

Answers

The equation can be solved by combining like terms. This is an example of the Associative Property because it states that the order of operations does not matter when grouping terms together. In this case, it allows us to add all of the x terms together and all of the constants together.

Therefore, the solution is x = 40.

Why did Japanese soldiers kill so many civilians in?

Answers

Up to 30 million people, mostly civilians, are said to have died, according to certain historians.

According to British historian Mark Felton, the Japanese "liberated" the Greater East Asia Co-Prosperity Sphere from colonial authority by killing 30 million civilians. Of these, almost 23 million were Chinese.

The Japanese military regime killed between 3,000,000 and 10,000,000 people between the time of the 1937 invasion of China and the end of World War II, with the majority of those killed being between 6,000,000 and 7,000,000 Chinese, Indonesians, Koreans, Filipinos, and Indochinese, among others, including Western prisoners of war.

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Some historians estimate that up to 30 million people—mostly civilians—died during the war.

Most of them were civilians. British historian Mark Felton claims that the Japanese killed 30 million civilians in order to "liberate" the Greater East Asia Co-Prosperity Sphere from colonial rule. Nearly 23 million of them were Chinese. Between the time of the 1937 invasion of China and the end of World War II, the Japanese military regime killed between 3,000,000 and 10,000,000 people, the majority of whom were between 6,000,000 and 7,000,000 Chinese, Indonesians, Koreans, Filipinos, and Indochinese, among others, including Western prisoners of war. The majority of the soldiers there were unskilled and inexperienced, and their commanders urged them to be quite cruel. Some civilians attacked the military first, forcing them to flee.

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12. Which type of industry is textiles?
O
primary industry
secondary industry
tertiary industry

Answers

Answer:

it is under secondary industry

why are volcanos important

Answers

Answer:

They helped cool off the earth removing heat from its interior. Volcanic emissions have produced the atmosphere and the water of the oceans. Volcanoes make islands and add to the continents. Volcanic deposits are also used as building materials.

Explanation:

Answer: Volcanoes are important because they can expand land and help it grow. Volcanoes can also provide nutrients such as magnesium and potassium that will create nutrient soil.

in which of the following classes of soil water are pesticides, excess plant nutrients and waste chemicals most apt to move through soils?

Answers

Pesticides, excess plant nutrients and waste chemicals are most likely to move through soil in the class of soil water that is available for plant use.

Soil water is usually classified based on the availability of soil water for plant use, movement of soil water and the soil-water properties. The movement of soil water plays a vital role in determining the movement of solutes in soils. Some of these solutes could be excess plant nutrients, waste chemicals, and pesticides which are common in our environments.

As earlier stated, pesticide, excess plant nutrients, and waste chemicals are more likely to move through soil in the class of soil water that is available for plant use. This is because this class of soil water has the most organic material, high porosity, high permeability, and is always saturated with water which gives a good condition for solute movement. Also, it is the only class of soil water that plant roots can easily access for nutrient uptake and water supply.

Thus, it is concluded that pesticide, excess plant nutrients, and waste chemicals are more likely to move through soils in the class of soil water that is available for plant use. It is important that farmers and other agricultural workers manage pesticides, excess plant nutrients, and waste chemicals carefully to avoid contamination of soil and water bodies.

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Breifly describe some of the common problem of traditional methods of showing relief on a map

Answers

The common problem of traditional methods of showing relief on a map are of various types which are used by cartographers.

These relief are as follows;Spot heightsLayer tintsContour linesHill shadingLandform shading

What are contour Lines?

In a standard topographic map, Contour lines are the most used or common traditional method of showing relief and elevation. Therefore, contour a line appears as an imaginary line or lines on the ground, above the ground or as well as vertical distance above or below sea level. Note, all points on the contour lines are at the same elevation.

What is Layer Tinting?

A cartographer can also use Layer tinting as a traditional method of showing relief on a map by the use of color. The application of different color is used for each band of elevation solely.

Also, a cartographer use each shade of band or color, to represents a definite elevation range. A legend can therefore be printed on the map margin to illustrate the elevation range that is represented by each color. Nevertheless, this method is not permissible to allow the map user to determine the exact elevation of a specific point.

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Please help me please help me

Please help me please help me

Answers

This exercise examines the atomic structure of some elements. The three elements examined are;

Iron - Fe-56Copper - Cu29Cerium - Xe 140.

See their analysis in the attached image.

What is a Atom?

An atom is a matter particle that specifies a chemical element uniquely. An atom is made up of a central nucleus and one or more negatively charged electrons.

The nucleus is positively charged and comprises one or more protons and neutrons, which are relatively heavy particles.

What is a Proton?

A proton is one of the three major particles that comprise an atom. Protons are present in the atom's nucleus.

This is a small, dense area in the atom's core. Protons have a positive electrical charge of one (+1) and a mass of one atomic mass unit (amu), or approximately 1.671027 kg.

What is a Neutron?

The neutron is a subatomic particle with the sign n or n0 that has a neutral charge and a slightly larger mass than a proton.

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Please help me please help me

how does youthful population pyramid indicates growing population but aged population a decreasing population


Please tell me correct answer


I will be thankful ​

Answers

In more developed countries, the population pyramid seems to get smaller and smaller in at the bottom, and larger at the top. This is due to two reasons:

A) Increased life expectancy, and

B) Lower overall birth rates.

Where does most of the population of Canada live?


on its southern border
in its cities
in the mountains
on its northern border

its a multiple choice.

Answers

Answer: "On it's southern border" and "In its cities"

Explanation: Pretty much all of the rest of Canada is either sparsly populated or uninhabitable. The south is the only majorly populated area due to its relatively mild weather (compared to the rest of canada)

Answer:

Most of them live on the U.S., Canadian border.

Explanation:

The majority of Canada's population is concentrated in the areas close to the Canada–US border. Its four largest provinces by area (Quebec, Ontario, British Columbia and Alberta) are also (with Quebec and Ontario switched in order) its most populous; together they account for 86% of the country's population.

A graduate student in geology who grew up in Florida (near the southernmost tip of the United States) gets to accompany her research professor to the North Pole. What will be different at the North Pole from the way she remembers the sky in Florida

Answers

The earth is made of Poles. What the different at the North Pole from the way she remembers the sky in Florida is that all of the above would be different from the way it is in Florida.

What are the different North Poles?

The Earth is known to have Four North Poles. They are;

The Geographic North Pole.The North Magnetic Pole.The Geomagnetic North Pole.The Northern Pole of Inaccessibility.

The Both of the Arctic is known as (North Pole) and the Antarctic  is known as (South Pole). They are known to be cold as  they do not readily have direct sunlight.

See options below

What will be different at the North Pole from the way she remembers the sky in Florida?

1. A celestial pole is overhead

2. The celestial equator is on the horizon

3. The way (and whether) the stars rise and set

4. All of the above would be different as it is in Florida

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When did the Mesozoic Era end

Answers

Answer: 66 million years ago

Explanation:

 The Mesozoic Era ended approximately 66 million years ago with the Cretaceous–Paleogene extinction event, which resulted in the extinction of the non-avian dinosaurs and many other species.

distinguish between transport and communication​

Answers

Transport

The action of going from one place to another using devices such as busses cars trains

Communication

The action of passing on knowledge or some kind of information through talking writing typing things like that

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