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Alika [10]
3 years ago
15

What is the ultimate source of energy for all ecosystems?

Biology
2 answers:
timofeeve [1]3 years ago
6 0
The answer is B. The sun
Y_Kistochka [10]3 years ago
3 0
The correct answer is B. the sun
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At which type of tectonic plate boundary is a volcano least likely to occur?
Arlecino [84]

Answer:

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Explanation:

Volcanoes can form in three different places: a convergent boundary, a divergent boundary, or a hot spot.

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- Volcanoes will form along divergent plate boundaries. A divergent boundary is when the plates move apart from each other. When the plates part, magma from under either plate rises and forms a volcano.

-A hotspot is the third place a volcano can form. This particular type is the least common. Hot spots are when thermal plumes from deep in the Earth rises. This heat, combined with the lower pressure at the bottom of the lithosphere, causes magma to form. The magma, as we discussed, is less dense than the surrounding solid crust and rises to the surface through cracks and channels and then erupts at the surface to form a volcano.

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3 years ago
An important characteristic of the earliest permanent human settlements was that _____.
alex41 [277]

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