Hail forms when its is A. SUPER cold and B they first have to accumulate into raindrops and then freeze, so basically they water molecules are just forming into regular rain and then the temperature suddenly drops the raindrops freeze and turn into hailstones.
Hope that helps!
It was most likely warm in antarctica before the asteroid hit.
Biomass is organic material which has stored sunlight in the form of chemical energy.
C. a delta. Because a delta is the only one of those choices to where it is formed at the mouth of a river
