What occurs when a substance melts?

Question

1) It changes from solid to liquid, and heat is absorbed.
2) It changes from solid to liquid, and heat is released.
3) It changes from liquid to solid, and heat is absorbed.
4) It changes from liquid to solid, and heat is released.

Answer 1

as a substance melts, it changes from solid to liquid and heat is absorbed

Answer 2

thanks :)

Answer 3

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