In the semi arid regions of China, the country's inhabitants have practiced water harvesting for generations. Water harvesting is the process of collecting rainfall and/or runoff for later use. How does this water conservation method help the environment?
A) Water harvesting causes drought-like conditions the rest of the year.
B) Harvesting water during the rainy season has damaged the ecosystem by killing some of the organisms.
C) By collecting run off during the rainy season for future irrigation increases the agricultural production.
D) Run off is one of the main sources of drinking water so there is a shortage of drinking water the remaining part of the year.
