Question

35) Eruption of volcano is a
reversible change *
(a) True
(b) False​

Answer 1

FALSE.

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Explanation:

No, It is generally considered as a physical change however some of the reactions of metals or minerals present in the volcano can react chemically but instead the whole volcano eruption is a physical change. It is true.

Answer 2

Answer:

A) True

Yes, when the rock that is erupted comes from within the Earth and is laid on the surface of the Earth, becoming part of the continental crust which cannot be subducted by tectonic plate movements.