Earth began as a mixture of about 90% stony, olivine-rich material and about 10% iron metal, just like the composition of chondritic meteorites. Soon after its formation the interior of the Earth is thought to have become very hot. What was the result of this increase in heat? A) The iron melted and collected in the interior of Earth to become its core. B) The olivine remained behind, becoming the mantle and the melted iron became the core. C) Both the olivine and iron melted and as they later solidified, became the mantle and the core. D) The olivine became the crust and the iron, melting, defended into the earth to become the core.

Answers

Answer 1

Answer: D. The olivine became the crust and the Iron melting defended the earth to become the core.

Explanation:

Earth was formed after it has went through a molten stage that led to the heavy materials sure as Iron metal moving inward to form the core, and the light materials moves toward the surface to form the crust.

The heat for the melting came from meteorite impacts which is usually very hot, the moon's impact, and the decay of radioactive elements.

Geological activity on the earth is driven from this initial source of heat at the earth's formation until now.


Related Questions

Consumers, or heterotrophs, take in food made by other organisms. Then they break apart the food to release its energy. How do these actions of consumers contribute to the carbon cycle?
A. Eating and breaking apart food converts carbon to other elements.
B. Eating and breaking apart food converts other elements into carbon.
C. Eating food involves taking up carbon dioxide.
D. Eating and breaking apart food releases carbon dioxide as a byproduct.

Answers

Answer:

d ? maybe , i just guessed tbh .

Answer: ya it’s D)

Explanation:

What is the function of an animal cell I really need help!

Answers

Answer: They are eukaryotic cells, meaning that they have a true nucleus and specialized structures called organelles that carry out different functions. Animal cells do not have plant-specific organelles like cell walls, which support the plant cell, or chloroplasts, the organelle that carries out photosynthesis.

1. What is the role of a receptor in helping an
organism maintain homeostasis?
A. receives messages sent by the control center
B. carries out a response to restore internal
conditions
C. detects stimuli and sends information to the
control center
D. compares current conditions with ideal values
for those conditions

Answers

Answer:

b

Explanation:

Homeostasis has been the tendency of the organism to maintain the equilibrium state. The stimuli are detected and transmitted to the control center by the receptors. Thus, option C is correct.

What is homeostasis?

Homeostasis is the physiological process that monitors the internal environment of the body. This involves the feedback system that includes receptors that report and transfers the information to the control center of the body.

The receptor is involved in detecting the stimuli in order to generate the response through the feedback control system. The mechanism involves the effector that provides a response to the stimuli detected and transmitted by the receptors.

Therefore, in option C. the receptor sends information by detecting the stimuli.

Learn more about homeostasis, here:

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The earth rotates on its axis in a counterclockwise direction once every 24 hours, deflecting anything traveling long distances on or above the surface. This is known a the Coriolis Effect. What impact could the Coriolis Effect have on weather patterns

Answers

Answer:

in the Southern Hemisphere, currents are deflected to the left. As a result, storm systems seem to rotate clockwise. Outside storm systems, the impact of the Coriolis effect helps define regular wind patterns around the globe. As warm air rises near the Equator, for instance, it flows toward the poles.

Explanation:

Answer:

Chance of a cyclone

Explanation:

Words to Know Write the letter of the definition next to the matching word as you work through the lesson. You may use the glossary to help you. eukaryote A. A protective layer surrounding a cell that controls what enters and leaves the cell spore B. An organism composed of one or more cells that contain nuclei cell membrane C. A reproductive cell that is resistant to harsh conditions and capable of developing into an adult without fusing with another cell prokaryote D. A single-celled organism that lacks a nucleus and membrane-bound organelles

Answers

Answer:

Statement A - cellular membrane

Statement B - eukaryote

Statement C - spore

Statement D - prokaryote

Explanation:

The cell membrane is a protective layer present around the cell and cell organelle that regulates and allows different molecules to enter and exit to regulate homeostasis.

Eukaryotes are the organism that can be unicellular or multicellular with the cells contain a nucleus in it.

Spores are reproductive cells that has a resistant layer that protects the cell from an unfavorable condition and capable to form an adult.

An organism that is unicellular and lacks the nucleus is known as a prokaryote and bacteria is an example of such organisms.

Which organism develops breathing organs from pharyngeal arches?

A.
shark
B.
spider
C.
sea star
D.
sea horse
thank you!! :))

Answers

Answer:

a ) shark

____________

your answer is a.shark

Is gneiss a fracture or cleavage?

Answers

Answer:

Cleavage

Explanation:

I believe it is a cleavage

6) Choose 3 cells that are not round and
explain how the structure of this cell
helps perform its function.

Example #1:
Structure:
Function:

Example #2:
Structure:
Function

Example #3:
Structure:
Function:

Answers

Answer:

Red Blood Cells The red blood cells contain hemoglobin, which is responsible for the transport and delivery of oxygen to other body tissues.

Nerve Cells Nerve cells or neurons are responsible for carrying electrical signals to and from the brain and spinal cord.

Muscle Cells Muscle cells are responsible for contraction and relaxation so as to cause motion of body parts.

Explanation:

Carbohydrates, proteins, and lipids are important molecules that make up the structure of the cell membrane. They help move materials into and out of the cell through the cell membrane
In what way is the cell membrane like a security guard?

Answers

Answer:

The cell membrane only alows certian materials to move through the membrane. Just like a security guard the membrane sorts through the good stuff and lets it past, but if someone or something bad comes along the security guard stops it. Just like the cell membrane.  

Remember that a theory does not become a law because, by definition, a theory can always be altered whereas a law is fact and does not change.
Give an example of a theory in science:
Give an example of a scientific law:

Answers

Theories: Daltons atomic theory, Einstein’s theory of gravity, theory of evolution
Laws: Newton’s law of gravity, Avogadro’s law, law of conservation of mass

What happens to the matter and energy in fruits as they decompose.
Please help! I really need help in science and no one in my family can help me! I will ask more science questions after this just in case you can help with those too

Answers

Answer:

During the process of decomposition, the decomposers provide food for themselves by extracting chemicals from the dead bodies or organic wastes; using these to produce energy. The decomposers will then produce waste of their own. In turn, this will also decompose, eventually returning nutrients to the soil.

Explanation:

A famous celebrity has an extreme security system for their estate. The security system includes sensors in the ground as well as on the sides of the buildings. A loud truck drives down the road entering the estate. There is a sensor in the ground and another on the side of the security guard’s shed. If both sensors are 100m from the truck, which sensor will pick up the noise of the truck first and why?

A.
Guard Shed - The sensor on the security guard’s shed will detect the sound first because the sound is traveling through the air and sound will travel fastest through a gas.

B.
Ground - The sensor in the ground will detect the sound first because the sound is traveling through the dirt and sound will travel fastest through a solid.

C.
Same time - Because the sound is traveling through both the ground and the air at the same time, it will reach both the shed and the ground sensor at the same time.

D.
Neither sensor - 100m is too far for the sound to travel. Neither sensor will pick up the sound of the truck until it is closer to them.

Answers

Answer:

B. Ground - The sensor in the ground will detect the sound first because the sound is traveling through the dirt and sound will travel fastest through a solid.

Explanation:

Sound wave is an example of mechanical wave, which means sound waves require a medium to travel through. However, how fast a sound travels is dependent on the kind of medium it travels through. Sound travels fastest via a SOLID medium, then liquid and slowest through gases.

According to this question, sensor in the ground and side of the security guard’s shed were placed in an estate owned by a famous celebrity. A loud truck, then, drives down the road entering the estate.

Based on the principles of sound eaves movement, the sound from the truck will be picked by the sensors in the GROUND first because the sound is traveling through the dirt and sound will travel fastest through a solid.

Write a summary of the digestive system. Include the organs of the system and tell if physical or chemical change or both take place in each organ.

Answers

The human body uses the process of digestion to break down food into a form that can be absorbed and used for fuel. The organs of the digestive system are the mouth, esophagus, stomach, pancreas, liver, gallbladder, small intestine, large intestine and anus. Recognizing how these organs work together to digest food is key to understanding how digestion works.

The digestive process begins in the mouth. Even before eating begins, the anticipation of eating stimulates glands in the mouth to produce saliva. The digestive system carries out three primary processes: mixing food, moving food through the digestive tract (peristalsis) and using chemicals to break down food into smaller molecules.

Who wants brainliest? Answer those 2 questions

Answers

Answer:

This type of natural selection occurs when there are selective pressures working against two extremes of a trait and therefore the intermediate or “middle” trait is selected for. If we look at a distribution of traits in the population, it is noticeable that a standard distribution is followed: Example:  For a plant, the plants that are very tall are exposed to more wind and are at risk of being blown over. The plants that are very short fail to get enough sunlight to prosper. Therefore, the plants that are a middle height between the two get both enough sunlight and protection from the wind.

This type of natural selection occurs when selective pressures are working in favour of one extreme of a trait. Therefore when looking at a distribution of traits in a population, a graph tends to lean more to one side: Example: Giraffes with the longest necks are able to reach more leaves to each. Selective pressures will work in the advantage of the longer neck giraffes and therefore the distribution of the trait within the population will shift towards the longer neck trait.

This type of natural selection occurs when selective pressures are working in favour of the two extremes and against the intermediate trait. This type of selection is not as common. When looking at a trait distribution, there are two higher peaks on both ends with a minimum in the middle as such: Example: An area that has black, white and grey bunnies contains both black and white rocks. Both the traits for white and black will be favored by natural selection since they both prove useful for camouflage. The intermediate trait of grey does not prove as useful and therefore selective pressures act against the trait.

Genes help to define who an individual is inside and out. In addition to visible traits like weight and eye color, psychological qualities such as personality traits, intelligence, risk of mental illness, and more have been linked to genetics.

Explanation:

This is what I could find.

1: overproduction, genetic variation, struggle to survive, and successful reproduction are 4 steps.

2: gene is a unit of heredity which is transferred from a parent to there kids(offspring). They relate to traits in people because if you’re born tall you got it from your mom/dad or their family traits.

Diffusion movement is always (h->L/L->H)

Answers

There is a net movement of molecules from areas of high concentration to other areas. The average diffusion rate in a semi-solid like agar is around 50mm/h over the first net diffusion will always occur.

Hope this helps!!

The flexible outer layer of an animal cell is called the cell wall.
O True
O False
Previous

Answers

Answer: false

Explanation: Animals do not have cell walls in their cells, instead they have membrane. Their membrane is the outer layer that is very flexible. So, the answer to the question should be false.

Answer:

false

Explanation:

Which of the following is a result of too many greenhouse gases in the atmosphere?
A: Glaciers melting
B: Sea levels rising
C: Cloud forests drying

Answers

Answer:

glaciers melting

Explanation:

thats what i would say

why do food chains in an ecosystem rarely contain more then five organisms

Answers

Why do food chains in an ecosystem rarely contain more than five organisms? ... Nutrients are lost from the ecosystem when organisms die. The conversion of food into growth by an organism is not very efficient. Energy is recycled by the decomposers back to the producers.

in what ways does pollination in gymnosperms differ from pollination in angiosperms?

Answers

Answer:

In gymnosperms, pollination involves pollen transfer from the male cone to the female cone.

3. What is the relationship between
adaptation and natural selection?

Answers

Answer:

hope it helps...

Explanation:

Evolution is not the same as adaptation or natural selection. Natural selection is a mechanism, or cause, of evolution. Adaptations are physical or behavioral traits that make an organism better suited to its environment. Heritable variation comes from random mutations.

What is the percent of slope on land where the elevation falls 3 feet in 75 feet of horizontal distance
A 4%
B 6%
C 4.5%
D 6.5%

Answers

Answer:

I pretty sure its C. 4.5%

Explanation:

the larvae of honey bee are voracious feeder why​

Answers

Answer:

so they could suck ur mums vigina

they are voracious feeder i.e, they keep on eating continuously because they remain inactive in the pupal stage for many days

Only eukaryotic cells have
cytoplasm
membrane bound organelles
DNA
ribosomes

Answers

membrane bound organelles

Plants are made up of _________________, _______________________, ________________________, ________________________, and __________________.

Answers

Answer:

nucleus, chloroplasts, cell wall, cell membrane, mitochondria, cytoplasm and vacuole

Explanation:

I think this is right.

I hope this helps! :)

Answer: cell wall, rna, dna, glucose, ribosomes

Explanation:

help what goes where help asap will try to mark brainliest!!​

Answers

Go from the bottom of the food chain to the top, the grass is eaten by herbivores, the bird and frog eat insects, and the snake is a carnivore and eats the other animals.

which organelle packages proteins in vesicles and sends them to the body where they are needed.

Answers

Answer- The Golgi apparatus gathers simple molecules and combines them to make molecules that are more complex. It then takes those big molecules, packages them in vesicles, and either stores them for later use or sends them out of the cell. It is also the organelle that builds lysosomes (cell digestion machines).
Hope this helps:)

Can someone help me please?

Answers

The answer is 2 I think I’m not sure

What is homeostasis (full explanation no copy right plz)

Answers

Answer:

Homeostasis is the ability to keep a stable internal state, despite changes in the environment. All living organisms must regulate their internal environment to process energy and survive. Hope it helps

Which trait can be passed from one generation to the next by genes? A. The ability to speak German B. Red hair color C. A broken arm D. A shaved head
Plz help me ​

Answers

Answer:

Red hair color

Explanation:

i promise you im right.

Answer:

red hair color.

Explanation:

because red hair is a gene that you can get from you parent or some other family members. a shaved head you cut, speaking german is a trait YOU learn and that you don't get from a member of your family

Which of the following is not a key ingredient in cloud formation?
particles. drizzle. water vaper. drop in air pressure

Answers

Answer:Drizzle

Explanation:

Clouds require water vapor, particles the vapor can condense around, and a drop in air pressure to form.

Cloud formation is a process that begins with a drop in air pressure. An ingredient that is not key in the formation of clouds is;

A. Drizzle

Drizzle is not an important factor in the formation of clouds. Clouds are formed when water and ice are suspended in the air.

The process of cloud formation begins when the terrain is heated up by the sun.

Wind blows more around the areas of low pressure thus causing the rising of warm air which holds up water.

After some time, this air becomes condensed and falls down as rain.

Summarily, Drizzling is not an important part of cloud formation.

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