1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ira [324]
2 years ago
6

What are possible origins of Earth's surface and internal energy?

Biology
1 answer:
saul85 [17]2 years ago
3 0

Answer:

The flow of heat from Earth's interior to the surface is estimated at 47±2 terawatts (TW) and comes from two main sources in roughly equal amounts: the radiogenic heat produced by the radioactive decay of isotopes in the mantle and crust, and the primordial heat left over from the formation of Earth.

You might be interested in
Identify the four principles of natural selection
zmey [24]
Variation- Heritable differences that exist in every population are the basis for natural selection
Overproduction- Competition for resources for resources
adaptation- A trait that helps an organism survive and reproduce
decent with modification- Natural Selection will result in species with adaptation that are well suited for survival and reproduction.
8 0
2 years ago
[BWS.02]An idea is considered scientific after it has been
arsen [322]
I would say tested anything scientific comes w a hypothesis and gets tested.
5 0
2 years ago
What is an amniotic egg?
tangare [24]

Birds and reptiles lay amniotic eggs.  They consist of a shell, embryonic membranes, and the embryo.
3 0
3 years ago
You should not use context clues when: _____. Select all that apply.
balandron [24]
I think the correct answers from the choices listed above are options D and E. You should not use context clues when you feel unsure of your guess and the surrounding words are also unfamiliar. Hope this answers the question.
6 0
3 years ago
Read 2 more answers
Which of these is a disadvantage of hydropower?
kotegsom [21]

Answer:

C. It harms aquatic organisms

Explanation:

The hydropower is a one of the most commonly used in the world. It is based on the power of the water, and by building a dam on a river, the water is accumulated, and its power used for production of electrical energy. While this type of power has lot of advantages, like having long lifespan, being eco-friendly, and it has high efficiency, it also has some negatives about it. The biggest negative by the hydropower is that it causes harm tot he aquatic organisms. Because there is a dam built, the water becomes more stagnant, meaning that it becomes warmer, harming the organisms that are not able to adapt to it. The dam restricts the migration of the aquatic organisms, which is especially a big problem for the ones that migrate because of mating. The nutrients start to concentrate in front of the dam, while after the dam they are in very low quantity.

8 0
3 years ago
Other questions:
  • How frequently do most coastal areas experience high tides? twice a day twice a month four times a day four times a month
    13·2 answers
  • Why are common names a problem for scientist?
    5·1 answer
  • How is the process of stratigraphic correlation carried out?
    6·1 answer
  • Please help
    5·2 answers
  • Why do biologists measure the number of trophic levels in an ecosystem?
    10·1 answer
  • A species of fly has two alleles for the length of their legs. The allele for long
    14·2 answers
  • Is this the correct answer?
    13·1 answer
  • Select the correct answer which sentence describes an object that has kinetic energy
    12·2 answers
  • The sea dog francis drake sailed along the coast of _______
    13·1 answer
  • PLEASE HELP!!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!