Volcanos extend so deep below earth’s surface that they reach down to the next layer. Which is the second layer of earth?

mantle

Explanation:

The mantle is very thick: 1800 miles deep. The mantle is a little bit like a sandwich. On the top and bottom parts of the mantle, the rock doesn’t move very much. In the middle of the mantle is the asthenosphere. This part of the mantle moves around fairly slowly. This moving mantle layer pushes the earth’s plates around.

the answer is: metamorphic rocks often show the presence of fossils, also a

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-lavira: )