The liter is a metric unit of volume. the u. s. customary unit of volume most nearly equal to the liter is the

Quart

The liter is a metric unit of volume. The U.S. Customary unit of volume most nearly equal to the liter is the quart.

A quart is a unit of measurement used to measure the volume of a liquid (how much liquid a container can contain). A quart is a quarter of a gallon and it is divided into two pints or four cups. There are three types of quarts that are been used. They include the; the dry quart of the US customary unit, the liquid quart, and the imperial quart. They are all approximately equal to one metric liter.

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.

i think that it is plants