The answer is b because the other ones are involved in environmental science
Answer:
A
Explanation:
At convergent boundaries magma is formed where water from a subducting plate acts as a flux to lower the melting temperature of the adjacent mantle rock.
Answer:
one year, mostly beyond earth's orbit
Explanation:
- For a comet that has a very concentric orbit which brings it quite close to the sun and is at a distance of the AU of one thus making it around one year to orbit and would spend its time mostly in the beyond the orbit of the earth. As bodies that are closer to the sun move faster