When the Earth's continental crust and ocean crust formed, they were different densities. Why did they differ in density and how did this affect their formation?

A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.

B.) The continental crust was thicker and more dense. It sunk below sea level, separating land from water.

C.) The continental crust was thinner and less dense. It rose above sea level, separating land from water.

D.) The continental crust was thinner and more dense. It sunk below sea level, separating land from water.


I think it’s B, but I’m not completely sure. Help please!

Answers

Answer 1

Answer: A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.

Explanation:

The Ocean crust is made out of rocks like basalt with a thickness of about four miles. The Continental crust on the other hand is made out of granite and other similar minerals and is between six and 47 miles in thickness which makes it thicker than the Oceanic crust.

With basalt being more dense than granite, the Oceanic crust sank and the Continental crust rose thereby separating land from water.

Answer 2

Answer:

Answer: A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.

Explanation:

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FLVS??? :)


Related Questions

Lack of which factor would be most likely to turn an alien species into an invasive species?


mates

suitable food

suitable habitat

predators

Answers

Answer:

predators

Explanation:

The correct answer is predators. An alien species that finds plenty of food and suitable habitat in its new home is usually able to find mates and reproduce well. But the competing species may become endangered or even extinct, because the alien (now invasive) species has no natural predators in the new environment, and its population can therefore grow without limits.

Answer: predators

Explanation:

What are the special attack enzymes bacteria produce to fend off viral attacks? *

Answers

Answer:

Many bacteria have a molecular immune system which allows these microbes to capture and retain pieces of viral DNA that they have encountered in the past, in order to recognize and destroy it when it shows up again.

Explanation:

DNA is directly involved in the process of transcription?

Answers

Answer:

yes

Explanation:

the answer is yes. if the question is yes or no...

if you had to choose between the phrase "natural selection gives organisms what they need" vs. "natural selection chooses traits that are most successful", which one would you choose? defend your answer.

Answers

Answer:

Natural selection gives organisms what they need

Explanation:

The species constantly evolve because of the changes around them. Natural selection gives organisms what they NEED in order to survive. "Natural selection produces organisms perfectly suited to their environments".

Species that continually evolve because of changes around them where natural selection gives organisms what they need to survive. "Natural selection makes organisms perfectly adapted to their environment".

What is Natural Selection?

Natural selection is defined as the differential survival and reproduction of individuals due to differences in phenotype which is a major mechanism of evolution, a change in the genetic properties of populations over generations.

It is the process through which populations of living organisms adapt and change where individuals in a population are inherently variable, meaning they all differ in some way. This variation means that some individuals have better adaptations to the environment than others.

Thus, species that continually evolve because of changes around them where natural selection gives organisms what they need to survive. "Natural selection makes organisms perfectly adapted to their environment".

Learn more about Natural selection, here:

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#SPJ2

Does anyone know how to do this???

Answers

I’m sorry but I have no idea, good luck finding help!

Scientists recently discovered that rocks collected from the Franklin Mountains in West Texas and rocks collected

from mountains in eastern Antarctica were exactly the same age. Further research showed that the rocks were

chemically and geologically the same and came from the same magma source. This discovery provides evidence

of

А

coastal erosion

B

plate tectonics

с

ocean currents

D

glacial melting

Answers

Answer:

Plate tectonics

Explanation:

Plate tectonics explains the features and movement of earth surface in the present and the past.

These plates are pieces of cracked shell that rest on the hot , molten rock of earth's mantle. The heat from the radioactive processes within the planet's inferior causes the plates to move, sometimes towards and sometimes away from each other.

These rocks collected were as a result of plate tectonics which drifted away.

Lactase is an enzyme produced in the small intestine helps digest lactose. What basic building blocks are used by the body to make lactase in the intestine) Answer choices are below

Answers

Sugars is thee right answer

In fact, he thought that if a species changed enough, it might evolve into a new species.

Answers

Answer:

More context

Explanation:

Therefore, he called this type of selection natural selection. Darwin knew artificial selection could change domestic species over time. ... In fact, he thought that if a species changed enough, it might evolve into a new species.

at the cellular level, what caused Sally's cancer

Answers

Answer:

Uncontrollable cell division.

Explanation:

Cancer is a disease which is caused when cells division is uncontrollable and spread into surrounding cells and tissues. Mutations in genes is also responsible for the cause of cancer because this mutation accelerate the rate of cell division or inhibiting normal controls on the system, such as programmed cell death. When the mass of cancerous cells grows with the passage of time, it turn into a tumor.

Which 4 characteristics would farmers want bred in to the modern pig? Will give brainliest!

Answers

Answer:

Selective breeding means herd improvement, on things such as milking ability, mothering ability, carcass quality, forage utilization efficiency, stability, birth weights, weaning weights, etc and they taste better.

Explanation:


Which hypothesis helps to explain why all organisms share the same genetic code?

Answers

RNA , RNA molecules may have been able to self-replicate without the help of other molecules. If early RNA molecules were able to copy themselves to build new RNA molecules, this helps to explain why all organisms share the same genetic code.

Which of the folllowing is true about the efficiency of the energy conversions in terms of the overall energy available to human shown in these diagrams

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Answer:

Showing results for Which of the following is true about the efficiency of the energy conversions in terms of the overall energy available to human shown in these diagrams

Search instead for Which of the folllowing is true about the efficiency of the energy conversions in terms of the overall energy available to human shown in these

why blood flow in a leg vein is slow when there is lack of movement?​

Answers

The guy in front of me is correct

900.j of work are done by a light bulb in 15.0 s. What is the power of the light bulb?

Answers

well power is equal to work multiplied by time so .. 900j divided by 15 s will give you 60 Watt as your answer

What is the shortest day of 2021? And What is the Longest Day 2021?

Answers

Answer:

June 21st is the longest day of the year December 21st is the shortest

Explanation:

Answer:

June 21st and December 21st

Explanation:

If the anticodon of a molecule of tRNA has the sequence GAU, what was the original DNA sequence?

Answers

Answer:it’s not CUA

Explanation:

why do food scientists analyse the dna from meat products

Answers

shhdjdjdnxhdndndnfnfncncjjdjsje

Which leaf would be in a cold and snowy climate?
Venus Fly Trap
Cactus
Sunflower
Wintergreen boxwood

Answers

Answer Wintergreen Boxwood

Explanation:

These are from cold snowy climates

im not sure but I have Wintergreen boxwood in my backyard and its snows all the time and its still very much alive so ye

sorry if i got this one wrong (i do know cactus, and sunflower usually need lots of heat to survive so if that helps)

Which of the following statements is true?
Only somatic mutations are important to evolution because they can be inherited.
Acquired mutations are passed down from parent to offspring.
O Hereditary mutations are caused by external factors, such as radiation.
O Mutations are the most fundamental way to add new genes to a gene pool.

Answers

Answer: A,B, and C.) Only somatic mutations are important to evolution because they can be inherited. Acquired mutations are passed down from parent to offspring. Hereditary mutations are caused by external factors, such as radiation.

Explanation:

The true statement is: Mutations are the most fundamental way to add new genes to a gene pool.

A mutation is any alteration in the genetic material (i.e. nucleotide sequence) of the genome of an organism.  

Mutations can be caused by both external (e.g., UV light) and endogenous (e.g., oxidative DNA damage) factors.

Mutation can be divided into somatic (body) cells and germline (gamete) cells. Only germline mutations can be inherited and pass from parents to offspring.

Acquired mutations are genetic alterations that are not present in the zygote, but are acquired sometime later in life. This type of mutation is involved in the development of cancer.

Mutations are the raw material on which natural selection operates, thus being the most important cause of evolutionary novelty.

In conclusion, mutations represent the most important source of genetic variability and a fundamental way to add new genes to a gene pool.  

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what do plants produce using nitrogen?

Answers

Answer:  Nitrogen is so vital because it is a major component of chlorophyll, the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (i.e., photosynthesis). It is also a major component of amino acids, the building blocks of proteins.

Explanation:

Photosynthesis cycles matter and energy in many envoronments. Explain how chemosynthesis cycles matter and energy in extreme environments. Explain your answer in 1-2 sentences.​

Answers

Answer:

They have metabolism that evolves on earth, lading to development of cellular respiration and photosynthesis later.

Explanation:

Chemosynthesis is a biological transformation of carbon molecules and nutrients into organic matter using the oxidation of inorganic compounds. Thus may support life on the surface of Mars and Jupiter.

Answer:

Chemosynthesis uses chemical energy instead of light energy to convert carbon or methane into organic matter. Chemosynthesis cycles matter, by passing matter and energy from one organism to aother when organisms are consumed.

Explanation:

I got 2/2 on this essay question :) prob just mix up what I said, so you're not flagged for plagirism.

During sexual reproduction, the offspring inherit their traits from A the father В. the mother C. both parents D. themselves​

Answers

Answer:

C. Both parents

Explanation:

I am not going to explain in full detail but basically the offspring needs something from the mom and the dad to live

the process that are responsible for growth development and other vital functions​

Answers

Answer:

For one to form, there needs to be warm ocean water and moist, humid air in the region. When humid air is flowing upward at a zone of low pressure over warm ocean water, the water is released from the air as creating the clouds of the storm. As it rises, the air in a hurricane rotates.

Explanation:

I hope it's help

which of the following statements about extinction is true?
a) extinction is the ultimate fate of all species
b) extinction can occur in small areas
c) extinction can be caused by the introduction of exotic species
d) all of the above

Answers

Answer:

The answer is D. ALL OF THE ABOVE on PEX

Explanation:

i just took the quiz!

The image below depicts a bowling ball traveling down the lane and striking pins, knocking them down. Identify at least two forces acting on the bowling ball.


1. gravity

2. friction

3. air resistance
(also called ‘drag’)

4. density




Answers

Friction and air resistance

What can be said about farmers in highly developed countries?
A) They have little or no negative impact on the environment.
B) They practice subsistence agriculture.
C) They are able to incorporate polyculture into their farming practices.
D) They utilize organic farming techniques on a regular basis.
E) They rely on large amounts of energy from fossil fuels.

Answers

Answer:

c

Explanation:

because, it just makes sense

Answer: B.) they are able to practice subsistence agriculture

Explanation:

IF YOU HAVE DONE ODSSEYWARE PLEASE HELP AND GIVE THE THE ANSWER

Choose all the answers that apply.
Mudslides can be caused by _____.

earthquakes

volcanoes

tsunamis

weathering

Answers

Earthquakes and weathering

•Who developed DNA fingerprinting?

•explain individual evidence and trace evidence according to DNA

•explain the use of a DNA probe

Answers

Answer:

Alec jefferis developed DNA fingerprinting.

Which statement correctly compares electric charge with electric current?

Answers

Answer:

voltage causes electric charges to move from higher to lower potential.

Explanation:

Population

Time (Years)

What has happened to the population after year 10?

©

The population has reached carrying capacity

The population is declining due to a new predator

The population is increasing because more food became available

The population is remaining constant because the and death rate are equal

Answers

Answer:

A. The population has reached carrying capacity.

Explanation:

I majored in Biology

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