Which states of matter have particles that move independently of one another with very little attraction?
a) gas and plasma
b) liquid and gas
c) solid, liquid, and gas
d) liquid, gas and plasma

Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium