Answer:
pretty sure its d im so sorry if im wrong I greatly apologize
Answer:
Clouds form when the invisible water vapor in the air condenses into visible water droplets or ice crystals. For this to happen, the parcel of air must be saturated, i.e. unable to hold all the water it contains in vapor form, so it starts to condense into a liquid or solid form.
Explanation:
Because it helps the environment strive and keep its self alive my controlling populations and bringing in new ones