You can use process of elimination here. The atmosphere is a key component for the air we breathe. The atmosphere protects us from harmful objects and rays. Finally, warm air has more moisture in it than cool air (for example why generally hot places are so humid).
The answer is; C
Equilibrium price is determined through the balance between the quality of the good or service being supplied and its demand in the market (wit6hout external influence such as from government). If the market price is set higher than the equilibrium price, then the good or service will be taken up more by the market than it can be replenished by the supplier/manufacturers hence creating a shortage in the market.
I believe it’s the igneous rocks
Flash flooding is most likely to occur when heavy rain falls on (1) deforested landscapes with clay soils.
