Stage in which a star’s outer layers have started to cool and grow outward?

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.

it's filtration, but this is an assumption so my apologies if i got this

elements make up everything, and they combine to make compounds.

the answer is c

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.