Question

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?

Answer 1

By collecting runoff during the rainy season much of the land degredation caused by water erosion is prevented.

Step-by-step explanation:

On USA test Prep this would be option D.

Answer 2

By collecting run off during the rainy season for future irrigation increases the agriculture production.

Hope this helps!
Sorry for answering so late.