what is the Earth's core made of

Answers

Answer 1
the answer to the question is nickel and iron
What Is The Earth's Core Made Of
Answer 2

Final answer:

The Earth's core is primarily made up of iron and nickel, with a solid inner core surrounded by a liquid outer core that generates the Earth's magnetic field.

Explanation:

The Earth's core is composed primarily of dense metals, predominately iron and nickel. The core can be subdivided into two parts: the outer core, which is in a liquid state and is responsible for Earth's magnetic field, and the inner core, which is solid due to the immense pressure it is under. The core also contains some amount of sulfur. The materials in the core are at a very high density due to the pressure of the overlying layers. The Earth's core begins at a depth of about 2,900 kilometers and has a diameter larger than the planet Mercury.


Related Questions

Which of the following can be used to induce abortion nonsurgically?

A. Mifepristone
B. Dextromethorphan
C. Estrogen
D. Progesterone

Answers

The answer is A. Mifepristone

Answer: Mifepristone

Explanation: Mifepristone provides a nonsurgical way to terminate a pregnancy.

Mifepristone is a synthetic steroid that interferes with the action of progesterone, a hormone crucial to the early processes in pregnancy. The pill can be used to induce abortion in early stages of pregnancy, but it becomes less safe to use after the seventh week. PF

I don’t understand this work I need help!

Answers

its asking at which point the elastic potential energy is greatest. So, from least to greatest would be when the trampoline is flat its a 1, when the trampoline has just been landed on is two, and the one in the middle is 3. The potential energy of the one in the middle is so big that it starts to fling you back into the sky.

Cells require glucose as a source of energy to carry out life processes. Large molecules like glucose cross the cell’s plasma membrane by..

Answers

Cells require glucose as a source of energy to carry out life processes. Large molecules like glucose cross the cell's plasma membrane by...

Facilitated diffusion through protein channels (Glucose enters a cell by facilitated diffusion through protein channels. Since the molecules are too big to move directly through the semipermeable membrane, there are built-in protein channels to facilitate the movement glucose into the cell. Because the glucose is moving with the concentration gradient, the channel helps the movement; no energy is expended. Active transport requires the use of energy to move molecules or ions against the concentration gradient. 

hope this helps!

Answer:

The correct answer is - Facilitated diffusion through protein channels.  

Explanation:

Glucose is a large molecule which is a 6- carbon sugar that stored energy for cellular functions. As it is a macromolecule that is difficult to move across the cell membrane by simple diffusion.

The facilitated diffusion is the process that helps large molecules to pass through the plasma membrane down the concentration gradient with the help of protein channels. As the glucose moves down the gradient by this process there is no need for energy as channels regulate the movement of molecules.

Thus, the correct answer is - Facilitated diffusion through protein channels.

t divergent plate boundaries in the ocean, magma rises and melts because of _____. intrusive plutons at the boundary increased silica content of magma higher temperatures at the surface a decrease in pressure

Answers

a decrease in pressure

hope this helps :)

Answer:

a decrease in pressure

Explanation:

A Divergent Limit occurs with the tectonic plates moving away in opposite directions and directions, so there is addition of magmatic material to the Earth's crust at this point. Magma ascends through a space that exists between the plates, called Rifte. At the divergent boundaries of the plates in the ocean, magma rises and melts because of a decrease in pressure caused by the removal of these plates.

What material is found in an asteroid that might be a cell what criteria must the material meet to be considered a cell?

Answers

An asteroid refers to an eosinophilic body exhibiting gradiating lines, observed in a vacuolated region of the cytoplasm of a multinucleated giant cell, mainly witnessed in sarcoidosis, however, also observed in other granulomas.  

It is also considered as a structural feature of sporotrichosis when observed in the skin or in secondary lesions of sporotrichosis. Thus, in order to be considered as a cell, it must possess a nucleus and membrane-bound organelles.  


Final answer:

Asteroids, such as C-type asteroids, contain components like organic carbon compounds and bound water, which are vital to life. However, to be considered a cell, it must have a cell membrane, genetic material, metabolism, and the capability to reproduce. There is no evidence yet of complete cells within asteroids.

Explanation:

Asteroids, especially C-type asteroids, are known to contain organic carbon compounds, silicates and chemically bound water, all of which are vital to the formation of cells. As remnants from the early solar system, asteroids may hold clues to the building blocks of life.

However, for a material to be considered a cell, it must meet several criteria. It must have a membrane that separates it from its surroundings, it must have a genetic material (DNA or RNA) for information replication, it must exhibit metabolic processes to utilize energy, and must be able to reproduce or self-replicate. Given the existing knowledge, asteroids do not contain fully formed cells, but they do hold some of the chemical precursors needed for life.

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The person who answers within 5 minutes and is correct gets brainiest answer



What type of protein, embedded in the plasma membrane, aids reactions of molecules that arrive?

A. Channel
B. Carrier
C. Enzymes
D. Peripheral

Answers

I’m believe it is enzymes

Final answer:

Enzymes are the type of proteins that are embedded in the plasma membrane and help in catalyzing reactions of incoming molecules enhancing the reaction's efficiency by lowering its activation energy.

Explanation:

The type of protein that is embedded in the plasma membrane and aids reactions of molecules that arrive is C. Enzymes. These specific proteins function as catalysts in various biochemical reactions, allowing these reactions to occur more efficiently. They do this by lowering the activation energy needed for the reactions to proceed. For instance, enzymes embedded in the plasma membrane could aid in the breakdown or synthesis of certain molecules that come in contact with the cell.

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which type of microspcope creates a 2 dimensional image

Answers

I believe the answer is transmission electron microscopes.

(Edited) It is Scanning Electron Microscope because it scan the surface of the substance and shows a 2 dimensional image

science question down below

Answers

She can make an OxiClean commercial.

What are mid ocean ridges?

Answers

a long, seismically active submarine ridge system situated in the middle of an ocean basin and marking the site of the upwelling of magma associated with seafloor spreading. An example is the Mid-Atlantic Ridge.


THIS IS THE GOOGLE DEFINITION*

how are the four states of matter described in physical science

Answers

Solid - definite shape and volume

Liquid - no definite shape but definite volume

Gas - no definite shape or volume

Plasma - high temperature physical state of matter in which atoms lose most of their electrons

processes that do not require oxygen are called

Answers

I think it’s anaerobic

Answer:

Anaerobic process

Explanation:

Cellular respiration requires oxygen and a food molecule such as glucose, and it gives off carbon dioxide, water, and energy. Pathways of cellular respiration that require oxygen are said to be aerobic. Glycolysis does not require oxygen, so it can quickly supply energy to cells when oxygen is unavailable.

One difference between carbohydrates and lipids is that

Answers

The difference is 1) sugars dissolve in water lipids don't. 2) sugars are made-up of subunits that form large polymers and lipids are not and don't form polymers. 3)Lipids store more energy than sugars hoped i helped

Lipids can store more energy and carbohydrates have less energy

how could an error during transcription affect the protein that is produced

Answers

The protein would have the wrong shape.

Hope this helps!


do open oceans have unlimited nitrogen, rich in silica and iron, or are nutrient-poor environments

Answers

Open oceans are nutrient poor environments rather than having plentiful resources.

Answer:

Open oceans are nutrient poor environments

Explanation:

Which example of a job is in the recreation career pathways

Answers

this is literally the one and only question i need to pass. im guessing it would be............................... C.   a whitewater rafting guide at a park in montana.......

its correct on e d g e n u i t y!!!!! hope i helped!!

Answer:

its C

Explanation:

1. The fossil shown in this photo is of a Basilosaurus. Its skeletal features suggest that it spent its entire life swimming in the ocean. Look at the environment the fossil was found in. Consider that Basilosaurus lived in the ocean. How has the environment of this location changed since Basilosaurus lived?

Answers

Answer:

The environment changed drastically probably due to tectonic plates shifting and either causing this part of land to move to a higher altitude or blocking the water from being in this now deserted place. At some point it seemed to be a river shown in the picture of the rock on the top right corner, as the rock looks a bit corroded it seems that the ocean slowly disappeared.

Explanation:

i had to do this to soo hope this helps

Final answer:

The environment of the location where the Basilosaurus fossil was found has changed over time. Geological processes and shifts in physical and chemical conditions have influenced the types of organisms that can thrive there.

Explanation:

The environment of the location where the Basilosaurus fossil was found has changed since Basilosaurus lived. Basilosaurus was an ocean-dwelling creature, and it is likely that the environment was once a large body of water. However, over time, geological processes such as tectonic movements and changes in sea level could have caused the area to undergo significant transformations. For example, the location of the fossil may now be on land or part of a different marine environment.

These changes in the environment could be reflected in the surrounding rock formations and the types of fossils found in the area. Fossils of other marine creatures, such as Mesosaurus, Lystrosaurus, and Cynognathus, indicate that different organisms inhabited the area at different times in the past. This suggests that the environment has gone through various shifts and adaptations over millions of years.

Overall, the environment of the location where the Basilosaurus fossil was found has likely experienced changes in physical and chemical conditions, which have influenced the types of organisms that can thrive there.

which land based biome do you feel would be the easiest of all the biomes to survive in? why?

Answers

I think that temperate steppe, because there is good so you can farm, there are forests for hunting, and in the cold winters, you can keep things like food to have it freeze and it would last longer. Hope this helps.

a humane red blood cell is 7.5 micrometers in diameter 1 centimeter =10,000 what is the diameter in centimeters?

Answers

1cm=10,00micrometers
7.5micrometers
7.5micrometers=0.00075cm

The behavior expected of someone occupying a particular status.

Answers

the answer is role (:

Final answer:

The expected behavior of someone occupying a particular status is referred to as a role in sociology. The roles, which are actions and reactions predicted by societal context, are linked to the social status. Each status can hold a variety of roles and these roles depend on the societal and cultural context.

Explanation:

The expected behavior of someone occupying a particular status relates to the concept of social roles in sociology. These behaviors are often referred to as roles, which are expected actions and reactions based on societal context. Roles are connected to social statuses; both ascribed (those you do not select, such as son or daughter) and achieved (those you choose, such as a nurse or a self-made millionaire).

For example, the status of 'student' has a set of cultural and societal expectations attached to it - attending classes, doing homework, obtaining grades, interacting with peers and teachers in certain ways - these make up the 'role' of the student associated with that status.

Each status a person holds comes with a certain role-set, also known as a range of roles attached to a particular status. This expectation to fulfill certain roles in society is part of the socialization process and varies with societal context and culture.

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A homozygous dominant mouse is crossed with a heterozygous brown mouse (tan is the recessive color).

Answers

the homozygous dom mouse is the one with the strongest genes so all the babies will turn out to look like the parent. Half of the mice will be heterozygous

Answer:

it most likely half and half so 50 50

Explanation:

What’s the difference between habitat and niche

Answers

a habitat is the general place where an organism lives and a niche is the range of a physical and biological conditions in which a species lives and the way the species obtain what it needs to survive and reproduce.

hope this helps!!!

I need everyones help please

Answers

Answer:Part 1.

The option C (diffusion) is correct option.

According to condition NaCl concentration is more outside the cell than inside the cell.So it will diffuse through cell membrane, from high concentration to low concentration.Part 2.

The option C is correct which is into the cell.

As the concentration both ions is more outside the cell so they will diffuse through cell membrane, from high concentration to low concentration.

Part 3.

The option B is correct which is occur into the cell.

According to condition NaCl concentration is more outside the cell than inside the cell.

So the net diffusion occurs into the cell.

Part 4.

The option D is correct option.

The diffusion of water will be in both direction. First it will be outside the cell, then inside the cell.

Part 5.

The option D is correct option.

Osmosis the movement of water from its high concentration to low concentration.So concentration of water is low outside the cell. Hence osmosis will be outside the cell.Part 6.

The option B is correct.

The salt solution compared to blood will be hypertonic.

A hypertonic solution is a particular type of solution that has a greater concentration of solutes.Since blood has low salt than solution so solution will be hypertonic.
Correct options and their explanations:Part A.

Correct option: C ( Diffusion).

Diffusion is the movement of a substance from an area of high concentration to an area of low concentration.

NaCl concentration is more outside the cell than inside the cell. So it will diffuse through cell membrane, from high concentration to low concentration.

Part B.

Correct option: C ( into the cell).

Ions ( Na+, Cl-) are more outside the cell than inside so they will move through cell membrane, from high concentration to low concentration, outside to inside the cell.

Part C.

Correct option: B (occur into the cell).

As NaCl concentration is more outside the cell than inside the cell.

Net diffusion = Diffusion into the cell + Diffusion outside the cell

So the net diffusion occurs into the cell.

Part D.

Correct option: D (occur in both directions)

Diffusion of water will be in both direction depending on the concentration of solutes, inside and outside the cell. First water will diffuse outside then inside the cell.

Part E.

Correct option:  D (occur outside the cell).

Under these conditions, NaCl concentration is more outside the cell than inside the cell. So water will move oppositely from inside to outside the cell.

Part F.

Correct option: B (hypertonic).

A hypertonic solution is a particular type of solution that has a greater concentration of solutes.

Hence salt solution compared to blood will be hypertonic. because it has more salts concentration than blood.






living or non living the martian and the car

Answers

Although fictional, a martian, in this sense, would be considered living. While a car would be considered non living.

Hope this helps :)

Final answer:

Mars is a planet that has the potential for life, but so far, there is no direct evidence of living organisms on its surface. Scientists are interested in searching for fossil life on Mars and are planning future missions to study Martian samples.

Explanation:

Mars is a planet that has the potential for life, but so far, there is no direct evidence of living organisms on its surface. The conditions on Mars, such as the lack of organic material and the sterilizing effect of ultraviolet light, make it unlikely for organisms to survive. However, scientists are still interested in searching for fossil life on Mars and are planning future missions to study Martian samples in laboratories on Earth.

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What two pieces of information are needed to determine ocean depth through echo sounding?

Answers

Two pieces of information

Sonar is an instrument which is used to search for things which are underwater. It is also used to find the depth of water by giving out ultrasonic vibrations into the water. The time which the vibrations take to return assists to find the distance of the reflecting surface.  

The correct answer is:

velocity of the wave and  

• the return time of the wave.

Echo sound is the method for determination the water depth, based on transmitting sound waves into water. Two things that are recorded are the time interval between emission and return of a pulse and the speed of sound in water at the time.


which statement is true about the relationship between the substrate and the active site of an enzyme

Answers

The substrate is the part that sticks into the active site of an enzyme.

Which of the Milankovitch cycles changes the shape of the earth's orbit around the sun? A) eccentricity B) axial tilt C) precession D) rotation

Answers

Eccentricity.

Good luck!!

The answer you are looking for is A) Eccentricity

the path of the Earth's orbit around the sun is not a perfect circle, but an ellipse. This elliptical shape changes from less elliptical (nearly a perfect circle) to more elliptical and back, and is due to the gravitational fields of neighboring planets (particularly the large ones – Jupiter and Saturn).

Hope this helps

Kyle does an experiment to test the effectiveness of a new type of fertilizer. He predicts that the fertilizer will make plants grow twice as fast as they would without the fertilizer. After the experiment is complete, Kyle's collected data show that the fertilizer only worked 60% of the time. Kyle decides to remove the data that contradicts his prediction from his published results so that his published conclusion will show that the fertilizer is 100% effective. The published results of Kyle's experiment

Answers

Answer:

The published results of Kyle's experiment are false and unethical

Explanation:

Kyle wanted to find the effectiveness of the new fertiliser. He believed that it would make the plants grow twice as fast as they would without fertiliser but this result was achieved only 60% of time.

Kyle should have reported this original result without altering it. This would have led people to work on the fertiliser more and improve its quality. Some agriculturists might have even looked for other better fertilisers to improve their crop production. But based on Kyle's false results all these people can be misguided to believe that the test fertiliser is 100% effective hence what Kyle did was totally unethical.

Final answer:

Kyle's modification of his experiment's data to only include supportive results undermines the scientific validity and integrity of his study on fertilizer effectiveness.

Explanation:

Kyle's decision to remove data contradicting his hypothesis from the published results of his fertilizer experiment compromises the scientific integrity of his study. Conducting a scientifically valid experiment involves not only developing a hypothesis and collecting data but also accurately presenting all results, regardless of whether they support the initial prediction.

Removing or altering data to fit a desired outcome is unethical and can lead to misleading conclusions about the effectiveness of the fertilizer. In science, it is crucial to report findings truthfully to advance knowledge and understanding accurately.

When the concentration of dissolved particles is the same throughout a solution , the system is said to be in ________________.

Answers

The answer is isotonic solution

compare and contrast geology and etymology

Answers

Geology is the study of the rocks and similar substances that make up the earth's surface, it is also considered as the study of the rocks and physical processes of the Earth in order to understand its origin and history. On the other hand, Etymology the study of the origin and history of words, or a study of this type relating to one particular word and how their form and meaning have changed over time.

Answer:

Geology refers to the branch of science, which studies the composition of the Earth or other planets, together with its development and origin. It is generally done by performing an examination of the rocks. On the other hand, etymology refers to the study of the historical development of languages, mainly as demonstrated in individual words.

In a graph showing temperature change of a material over time, temperature change is the... ?

Answers

it is the, Dependent variable

Answer: dependant variabkle

Explanation:

Other Questions
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