Changes in groups of organisms over time produce variations in a population. this relates to

the answer is c.) there is a warm front in region a and a stationary front in region b.

supercell thunderstorms are perhaps the most violent of all thunderstorm types, and are capable of producing damaging winds, large hail, and weak-to-violent tornadoes

yes

no

blue is scattered more than other colors because it travels as shorter, smaller waves. this is why we see a blue sky most of the time.