Its not c the correct answer would be the second on.
The correct answer is (b.) infiltration. Rainfall is to precipitation as groundwater is to infiltration. Precipitation is the release of the water from the cloud (evaporated water) in the form of rain and snow. Infiltration is a process in which the water from the ground enters the soil.
Because 40= 20x2, in order to keep the ratio consistent Megan would need 1/2 of 71 g of chlorine which is 35.5, right?
Because their foots is shaped like a spade