Question

How can glass be a liquid if it's so hard​

Answer 1

Answer: Because glass is hard, it must be a supercooled liquid. Glass, however, is actually neither a liquid—supercooled or otherwise—nor a solid. It is an amorphous solid—a state somewhere between those two states of matter.

Explanation:Hope it helps..

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Answer 2

Answer:

heat

Explanation:

every substance have a melting point on which it melts