Answer:
I would say a
Explanation:
Density and hardness have little to do with melting points and while option c seems correct it is less specific than option a and in science specifics and detail is very important
Answer:
REM rebound is the lengthening and increasing frequency and depth of rapid eye movement (REM) sleep which occurs after periods of sleep deprivation. When people have been prevented from experiencing REM, they take less time than usual to attain the REM state.
Explanation:
D ) grass , mushroom , wolf and deer
