Question

Why do you think are the rocks harder inside than outiside?

Answer 1

Explanation:

because of volcano eruption

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Answer 2

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• The gradual distinctigration of rocks is caused by atmosphere forces.
• The rocks in exposed to heat expand and contract when cooled down.
• As surface rock contract and expands and contracts again, it gradually becomes brittle and begins to break down.
• Water reacts with the chemicals in the rock and further weakens it.
• It easier to chip small pieces of rock from the outside layer rather than from the core of the rock.
• Thus we can say the rocks are harder inside and outside.