Which of the effects of irrigation on the world’s environment is a criticism of using reservoirs?

Waste byproducts can contaminate land when not safely disposed of.
Groundwater can be contaminated by plastic.
Crops can be contaminated and harm the people who consume them.
Flooding can potentially occur and harm wildlife and land.

Flooding can potentially occur and harm wildlife and land is a criticism of using reservoirs for irrigation.

The criticism of using reservoirs as a part of irrigation is that flooding can potentially occur and harm wildlife and land.