Our current ideas on galaxy formation suggest that the visible parts of galaxies:a. form first and are incorporated into dark matter halos later.b. form only in the densest parts of dark matter halos.c. can tell you the total size of the dark matter halo.d. can tell you everything about the formation history of that galaxy.

Answers

Answer 1

However, studying the visible parts of a galaxy can provide valuable information about its size, structure, and evolution over time.

Ultimately, a comprehensive understanding of galaxies requires an understanding of both the visible and invisible components, as well as their interactions and evolution. According to our current understanding of galaxy formation, galaxies form within dark matter halos. Dark matter is a type of matter that does not interact with light and can only be detected indirectly through its gravitational effects. Galaxies are believed to form in regions of high-density dark matter, where the gravitational pull is strong enough to attract gas and dust.The visible parts of galaxies, such as stars, gas, and dust, form within these dense regions of dark matter halos.

This is because the gravitational attraction of the dark matter helps in gathering and compressing the gas and dust, leading to the formation of stars and other visible components of the galaxy.

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Related Questions

which of the following is incorrect about alpine glacial movement? question 91 options: glaciers move under the pressure of their own weight and the pull of gravity. glaciers are mostly stationary, only moving several centimeters over tens of years. glaciers move in streamlike patterns, merging as tributaries into large rivers of ice.

Answers

Alpine Glaciers are mostly stationary, A sheet of snow that covers a cirque or high rock basin is an alpine glacier. The ice beneath the iceberg's topmost layer, which is fragile, behaves like a plastic substance flowing slowly.

Alpine or mountain glaciers are those that are encircled by mountains. They are an enduring mass of snow that travels slowly beneath their weight. A sheet of snow that covers a cirque or high rock basin is an alpine glacier. In a cirque or high rock basin where snow accumulates all year long, the glacier typically forms. In a cirque or high rock basin where snow accumulates all year long, the glacier typically forms. The glacier's ability to balance the rates of evaporation and melting at its lower end with accumulation at its upper surface is its most astonishing characteristic. The glacier begins to occupy a valley that slopes downward between creeks or cliffs.

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If you are given a satellite that is the size of the Earth’s Moon (~3000 km), list three ways in which you can change the properties or location of the satellite to melt its interior. Briefly justify/discuss one (1) of your responses.

Answers

If you are given a satellite that is the size of the Earth’s Moon (~3000 km), three ways in which you can change the properties or location of the satellite to melt its interior are:

1. Change the orbit of the satellite: A satellite's distance from its planet determines how hot or cold it is. As a result, one option for melting the satellite's interior is to alter its orbit.

2. Increase the satellite's gravitational forces: The gravitational force of the moon is one of the reasons it remains solid. You may use other planets or massive satellites to increase the gravitational forces of your moon, which will cause its interior to melt.

3. Increase the satellite's internal temperature: The heat generated by radioisotope thermoelectric generators or solar arrays could be used to heat up the satellite. Additionally, mirrors or lenses may be used to concentrate sunlight, raising temperatures even further.One possible response to the above options is to increase the satellite's internal temperature, which can be achieved in a variety of ways. For example, mirrors or lenses may be used to concentrate sunlight on the satellite's surface, allowing it to absorb more heat and gradually melt its interior. This approach has the advantage of being relatively easy to implement and cost-effective.
Additionally, it is less risky than modifying the satellite's orbit or gravitational forces, which might result in unpredictable outcomes that are difficult to manage.

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The 2010 blowout in the Gulf of Mexico (Figure 116) occurred after the drilling operator replaced the drilling mud in the well with seawater during the final installation of the cement seals a) Assuming that the drilling mud had a density of 2160 kg/m (18 lbs/gal) and that the column of mud was 5486 m (18.000 ft) high, use the following relationship to calculate the pressure in kg/m-sec at the bottom of the well. The gravitational constant is 9.806 m/sec. Be sure to show your math, including the units pressure = (density of mud) x (gravitational constant) x (height of fluid column)

Answers

The pressure at the bottom of the well is 116,198,746.56 kg/m-sec. Assuming that the drilling mud had a density of 2160 kg/m (18 lbs/gal) and that the column of mud was 5486 m (18.000 ft) high in Gulf of Mexico .

gravitational constant = 9.806 m/sec

height of fluid column = 5486 m

density = 2160 kg/m

pressure = (density of mud) x (gravitational constant) x (height of fluid column)

pressure = 2160 kg/m x 9.806 m/sec x 5486 m

pressure = 116,198,746.56 kg/m-sec

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What ideas do you have about how two places could have the same amount of sunlight but different skin cancer rates?​

Answers

Answer:

Skin cancer among people who are sensitive to sunlight is more common in regions with stronger sunlight. People with genetic diseases that make them more sensitive to sunlight have a greater chance of developing skin cancer. Studies show that ultraviolet radiation similar to sunlight causes skin cancer in animals.

Name any 5 deltas in the world .....​

Answers

Answer:

Hey mate......

Explanation:

This is ur answer.....

-> Amazon Delta.-> Danube Delta.-> Ebro Delta.-> Euphrates Delta.-> Fly Delta.-> Ganges–Brahmaputra Delta.-> Indus River Delta.

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amazon delta
danube delta
ebro delta
fly delta
godavari delta

beaches change size with every storm, but if you average over a few decades, the size of a typical sandy beach is usually controlled by: group of answer choices the balance between removal of sand from the beach by smaller summertime waves, and gain of sand from deep water by bigger wintertime waves. the balance between sand loss to the wind, and sand supply from glaciers. the balance between sand loss t

Answers

Beach size varies with each storm, but on average over a few decades, a normal sandy beach's size is typically regulated by the equilibrium between sand supply from rivers or coastal erosion and sand loss to the deep sea. The right response in this case is option D.

The majority of beach materials are the result of erosive weathering. Water and wind erode the ground over a long period of time. For instance, certain rocks may break free as a result of the constant motion of waves crashing against a rocky bluff. Massive boulders can be reduced to the size of sand grains.

A rocky beach is produced when large waves carry sand offshore and onto longshore sand bars. A broad, sandy beach is produced when little waves push sand up the beach face.

Sand is created as rocks erode and weather over decades, even millions, of years. The decomposition of rocks, particularly quartz (silica) and feldspar require time. Rocks slowly move down rivers and streams, often beginning thousands of kilometers from the ocean, continually disintegrating along the way.

Complete question:

Beaches change size with every storm, but if you average over a few decades, the size of a typical sandy beach is usually controlled by: a group of answer choices

A - the balance between the removal of sand

B - the beach by smaller summertime waves, and gain of sand from deep water by bigger wintertime waves.

C - the balance between the sand loss to the wind, and sand supply from glaciers.

D - the balance between the sand loss to deep water, and sand supply from rivers or from coastal erosion.

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what is the european landforms of uplands

Answers

The Western Uplands are old in geologic terms and are therefore low, rounded mountains and plateaus. They stretch from the Iberian Peninsula, to Brittany in France, to the western British Isles, then north of the North European Lowland through northern Scandinavia, Finland, and northwest Russia.

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The darkness of night motif used in this excerpt creates a sense of
a. urgency.
b. anxiety.
c. romance
d. confusion

Answers

The darkness of night motif used in this excerpt creates a sense of urgency. Thus, option A is correct.

How does Shakespeare contrast light and darkness in Romeo and Juliet?

The interaction of light and shadow is one of Romeo and Juliet's most often seen picture patterns. Romeo, for instance, frequently likens Juliet to light throughout the play. Romeo remarks that she instructs "the torches to burn bright" as soon as he sees her. She may "kill the envious moon" since she is "the sun" as well.

He later says in the same scenario that she has eyes that are "two of the fairest stars in all the heaven" Juliet, however, "hangs upon the cheek of night / As a rich jewel in an Ethiop's ear," where her light "hangs upon the cheek of night / As a rich jewel in an Ethiop's ear" shines brightest against the darkness. Romeo is likewise associated by Juliet with a light that dispels the shadows.

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Item 5
What is the stimulus shown in the photograph?


light coming from a single direction


the plant growing toward the light


the insect touching the trigger hairs


the trap closing over the insect

Two images, one showing an open Venus flytrap and the other showing Venus flytrap with an insect captured in its jaws

Answers

Answer: B

Explanation: im not really sure sorry if wrong

Answer:

d

Explanation:

which of the following would cause the evaporation rate to decrease? question 22 options: increased wind speed increased temperature increased water availability increased relative humidity

Answers

In contrast to increased wind speed, temperature, and water availability, increased relative humidity would result in a decrease in evaporation rate.

The amount of water vapor in the air as compared to the maximum amount that can exist at a particular temperature is known as relative humidity. The amount of water vapor in the air increases when the relative humidity is high, which slows down the pace at which water molecules can evaporate from a surface. As a result, the rate of evaporation reduces as the relative humidity rises. On the other hand, a higher wind speed, a warmer temperature, and more water would all accelerate evaporation.

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Explain the tradition of the place they visited.

Answers

There are various reasons for which a person likes traveling. Maybe you like to see new places and explore locations you have never seen before. Maybe you like looking at beautiful landscapes. Alternatively, perhaps you are interested in the culture and traditions a certain nation has. The latter is not as common as the first ones, but it is a legitimate reason to travel across the world. Some people are just curious to see what is like to live in another country. Some nations have a unique way of life, something that you do not see every day. Certain traditions have been kept for hundreds or thousands of years. Those are the ones you want to see. To witness such things, you must know which cultures hold them. Below you will find a list with ten destinations where tradition is put on a pedestal. You will have a lot to learn from the people you find there.

Answer:

People travel for pleasure and need. People have to travel for work, to move location, to study or attend family. People like to travel for many kinds of pleasure. They like to see beautiful places, explore cultures and cuisines. Some like to try activities in different locations or visit family and friends.

emáticas
¿Qué numero es cien más que 792?

Answers

Answer:

892

Explanation

: porque 100 mas 792 es 892

Explanation: porque 100 mas 792 es 892

Explanation: porque 100 mas 792 es 892

Explanation: porque 100 mas 792 es 892

Explanation: porque 100 mas 792 es 892

Explanation: porque 100 mas 792 es 892

Explanation: porque 100 mas 792 es 892

Explanation: porque 100 mas 792 es 892

Explanation: porque 100 mas 792 es 892

Explanation:

Both human and animal wastes are sometimes used as fertilizer. How are the two types treated differently before they are used to fertilize
crops?
O Human waste is used directly; animal waste goes through physical and chemical treatment.
O Human waste is used in solid form, animal waste is used in liquid form
O Human waste goes through physical and chemical treatment, animal waste is used directly.
O Human waste is used in liquid form, animal waste is used in solid form

Answers

Human waste goes through physical and chemical treatment, animal waste is used directly as fertilizer.

Animal waste can be used as fresh manure directly on the soil whereas human waste should be properly recycled so that it contains no harmful bacteria.

Human waste can be used with right heat treatment like composting, all dangerous bacteria can be removed. Bio-solids can also be used.

Animal waste include variety of organic fertilizers like poultry and cattle manure which provides nutrients in soil.

Thus option C is correct.

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Human waste goes through physical and chemical treatment; animal waste is used directly.

all fetal organs are formed by the primary germ layers

Answers

The primary germ layers are responsible for the development of all fetal organs by giving rise to specific tissues and structures within the body, ensuring the formation and functioning of vital systems in the developing organism.

During embryonic development, the primary germ layers—ectoderm, mesoderm, and endoderm—play a crucial role in the formation of all fetal organs. Each germ layer contributes to specific tissues, structures, and systems within the developing organism.

The ectoderm is the outermost layer and gives rise to the nervous system, including the brain and spinal cord, as well as the epidermis, hair, nails, and sensory organs such as the eyes and ears. It also contributes to the development of certain glands and the enamel of teeth.

The mesoderm is the middle layer and contributes to the formation of various structures. It gives rise to the musculoskeletal system, including bones, muscles, and connective tissues.

It also forms the circulatory system, including the heart and blood vessels, along with the urinary and reproductive systems. Additionally, the mesoderm contributes to the formation of the dermis of the skin.

The endoderm is the innermost layer and forms the lining of various internal organs. It gives rise to the respiratory system, including the lungs and trachea, as well as the gastrointestinal tract, including the stomach, liver, pancreas, and intestines.

The endoderm also contributes to the formation of the urinary bladder and the lining of the urinary and reproductive ducts.

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Question 1 Which of the following creates a true statement? "As a stream's velocity increases, O the stream's competence increases O the stream's capacity decreases the stream's gradient increases O the stream's roughness increases Question 2 A landform produced along the streambank as a result of flooding: Oyazoo stream Opoint bar O natural levee O moraine Question 3 In a meandering stream: O erosion or deposition happens randomly O crosion happens along the inner bank. O deposition happens along the outer bank O erosion happens along the outer bank 1 pts 1 pts 1 pts Question 4 Match the property or term to the correct portion of the stream, whether near the headwaters (source) or downstream (mouth). steep gradient near/at base level highest discharge vertical erosion V-shaped valley broad floodplain lateral erosion small drainage basin area mouth

Answers

1.The following that creates a true statement is  "As a stream's velocity increases, the stream's competence increases. The correct option is a. 2.A landform produced along the streambank as a result of flooding is natural levee. The correct option is c. 3.In a meandering stream erosion happens along the outer bank. The correct option is d.

4.Matching the following: Steep gradient - headwaters, near/at base level - mouth, highest discharge - mouth, vertical erosion - headwaters, v-shaped valley - headwaters, broad floodplain - mouth, lateral erosion - mouth and small drainage basin area - headwaters.

Headwater refers to the portion of a river or stream closest to its source in a mountain, whereas mouth refers to the location where a river empties into the sea, a lake, or a larger stream that is in its lower course.

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introduction to modern climate change by andrew dessler

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"Introduction to Modern Climate Change" by Andrew Dessler is a comprehensive textbook that provides an overview of the scientific principles underlying our current understanding of climate change.

The book covers a wide range of topics, including the Earth's energy balance, the role of greenhouse gases in the atmosphere, the causes and effects of climate change, and the potential solutions to mitigate its impacts. Dessler emphasizes the importance of understanding the underlying physics of climate change, as well as the need for accurate observations and robust models to make accurate predictions about future climate.

Throughout the book, Dessler emphasizes the urgent need for action to address the threats posed by climate change, and discusses the political, economic, and social challenges that must be overcome in order to transition to a sustainable, low-carbon future. Overall, "Introduction to Modern Climate Change" provides a comprehensive introduction to the science of climate change, and is an essential resource for students, researchers, and policymakers working in this field.

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What are 3 different activities you can do in Tokyo, Japan.
_--
_--
_--
_--
100 POINTS

Answers

Answer:

Ahh, yes, I love Japan. You could visit...

A shrine.A capsule hotel.One of the thousands of arcades.

I hope this helped at all.

How does weathering change the landscape of the earth.

Answers

Answer:

Weathering is the breaking down or dissolving of rocks and minerals on Earths surface.

Explanation:

Once a rock has been broken down, a process called erosion transports the bits of rock and minerals away. ... Weathering and erosion constantly change the rocky landscape of Earth. Weathering wears away exposed surfaces over time.

Determine the equation of the circle graphed below.

Determine the equation of the circle graphed below.

Answers

A mathematical equation is a formula that uses the equals sign to represent the equality of two expressions. The definition of an algebra equation is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.

Two expressions are combined in an equation using an equal symbol ("="). The "left-hand side" and "right-hand side" of the equation are the two expressions on both sides of the equals sign.

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which best describes the way sunlight creates ocean currents?

Answers

Answer:Because the sun is stronger near the equator due to the Earth's axis, equatorial waters are heated more than polar waters. It's due to convection.

Explanation:

Answer:

Sunlight warms the waters on the ocean surface. Some heat energy is transferred to cooler waters through convection.

Explanation:

help my sis out pls :)

help my sis out pls :)

Answers

Answer:

otayy, leo.

the oldest mountain, we can say its been around for a while now so it would make sense as to why it would be leo. since its been around the earth has changed and moved shifting plates etc, this takes time. making leos answer make more sense. again im not sure abt this response but this answer (leo) should be right

How many contour lines would you
need to show a change in elevation of
2,000 feet on a map with a contour
interval of 400 feet?

Answers

You would need 5 contour lines to show change in the elevation of 2,000 feet on map with contour interval of 400 feet.

What is a contour line?

A contour line of a two-variable function is a curve where the function has a constant value, joining points of equal value. A contour line, used in cartography, connects points that are similar in elevation (height) above a specified level, like mean sea level. A contour map is a map that has contour lines drawn on it, such as a topographic map that displays valleys, hills, and the steepness or leniency of slopes. The elevation difference between a contour map's subsequent contour lines is known as the contour interval. Every time, the function's gradient is parallel to the contour lines. The gradient has a significant amplitude and a steep variation when the lines are near together.

No. of contour lines= 2000/400=5

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Which of the following groups is least likely to have communal land ownership due to the high value placed on land as a productive resource?
horticulturalists
agriculturalists
pastoralists
foragers

Answers

The following group is least likely to have communal land ownership due to the high value placed on land as a productive resource: agriculturalists.

Agricultural societies rely heavily on cultivating crops and producing food for consumption and trade. As a result, agriculturalists view land as a valuable resource that is essential to their livelihood and economic success.

Therefore, they are more likely to practice individual land ownership and private property rights rather than communal land ownership. In contrast, foragers, horticulturalists, and pastoralists tend to rely on a more nomadic or subsistence lifestyle and may have communal land ownership as a way to ensure access to resources for all members of the group.

However, it is important to note that the specific cultural and historical contexts of each group can influence their practices and beliefs regarding land ownership.

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In the United States, what is one of the major uses of public wilderness land?
highway shortcuts
military bases
outdoor recreation
agriculture

Answers

One of the major uses of public wilderness land in the United States is outdoor recreation.

The correct option is [C].

Wilderness areas are specifically designated as such to ensure that natural and cultural resources are protected and preserved while allowing for low-impact activities such as hiking, camping, fishing, and hunting.Wilderness areas are important in the United States because they provide unique opportunities for outdoor recreation that is often unavailable in urban areas.

Additionally, wilderness areas can serve as research sites for scientists, places of spiritual and cultural significance for indigenous peoples, and habitats for wildlife.

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Need Help With Geography

Need Help With Geography

Answers

Answer:

d. 70%. approximately ,cause it's 71%

HELP! I need someone to write a sentence that summarizes the changes shown here.

HELP! I need someone to write a sentence that summarizes the changes shown here.

Answers

This is about a river drying up.

A  -  Deforestation

B  -  Industrial pollution

C  -  Agricultural runoff

D  -  Water over-extraction

E  -  Climate change-induced drought

How is this so?



Stage A  -  Heavy deforestation occurs near the river, reducing the natural canopy cover and increasing soil erosion.

Stage B  -  Increased industrialization leads to the release of toxic chemicals into the river, polluting the water and harming aquatic life.

Stage C  -  Uncontrolled agricultural practices contribute to excessive nutrient runoff, causing algal blooms and oxygen depletion in the river.

Stage D  -  Growing water demand due to population growth results in over-extraction of water from the river, reducing its flow.

Stage E  -  Climate change exacerbates drought conditions, further reducing the river's water levels and eventually causing it to dry up.

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why does rainfall cause carbonation but pure water does not​

Answers

Answer:

No. Water is an excellent solvent and rain always contains dissolved gases from the atmosphere. Even in a remote, pollution-free region, rainwater

Explanation:

Due to carbon dioxide gas from the atmosphere, typical rainfall has a pH of about 5.6, making it mildly acidic.

What is Carbonation?

Carbonation is the process of adding carbon dioxide gas to a beverage in order to give it a sparkle, and a tangy flavor, and to keep it from spoiling. The liquid is cooled and poured into a container that is under pressure and contains carbon dioxide (either as dry ice or a liquid).

Soft drinks, sparkling water (seltzer water), and carbonated wine are some examples of carbonated drinks; the latter has many of the same qualities as fermented sparkling wine but is easier to create.

Sparkling water can be naturally or artificially carbonated. Volcanic gases naturally dissolve in springs or wells of natural water, creating sparkling or carbonated water. This naturally effervescent water frequently includes minerals like calcium or salt.

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why does mars appear fainter than venus, as seen from earth?

Answers

Mars appears fainter than Venus, as seen from Earth, because of the distance between Mars and Earth and the amount of sunlight that both planets reflect to Earth.

The brightness of the planet depends on the distance from the planet to the sun and the planet to Earth and also on the amount of sunlight that is reflected back to the Earth. So, Mars appears fainter than Venus, as seen from Earth because of the following reasons:

Distance from Earth: The distance between Mars and Earth changes due to their orbits around the Sun. At their closest approach, Mars is around 33.9 million miles away from Earth, whereas Venus is around 24.6 million miles away from Earth. Thus, Venus appears brighter to us than Mars because it is closer to Earth and reflects more sunlight.

Amount of sunlight reflected: Venus is the second planet from the Sun, and it is covered by thick clouds, which reflect most of the sunlight that hits them. Thus, it appears brighter in the sky. Mars, on the other hand, is a much smaller planet with a thinner atmosphere and lighter-colored surface. As a result, it reflects less sunlight than Venus.

Additionally, the Martian atmosphere scatters light more than Venus's atmosphere, making Mars look even fainter compared to Venus. So, in conclusion, Venus appears brighter than Mars, as seen from Earth, because of its proximity to Earth and the amount of sunlight it reflects.

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An arc in this circle has a central angle of 162, degrees.
What is the length of the arc?
Either enter an exact answer in terms of \piπpi or use 3.14, point, 14 for π and enter your answer as a decimal.

Answers

Answer:

yes

Explanation:

What is the growing season like in the Middle Atlantic states?


short


long


medium

BRAINLESTAND FIFTY PTS

Answers

Answer: Medium

Explanation:

Answer:

short

Explanation:

i have expired

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