Question

As of the 1990s, scientists have proved the existence of how many states of matter?

Answer 1

Answer:

3 states

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Answer 2

As of 1990, scientist have proved 4 states of matter, i.e.:

1) solid

2) liquid

3) gas

4) plasma

Till 2000, only calculations on 5th state of matter (BEC) was there....no one have proved it, but in 2001, Eric A. Cornell, Wolfgang  Kerterle and Carl E. Wiemab of USA have received Nobel prize in physics for achieving "Bose Einstein Condensation" .

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