Question

which event would most likely cause a competition for water?
male deer hunt for their food.
a valley is stricken with drought.
prairie dogs search for shelter.
a rainforest is exposed to sunlight.

Explanation:

Competition for water occurs when water becomes a limited resource. A drought drastically reduces available water in a valley, forcing all organisms there to compete for the scarce remaining water. The other options involve food, shelter, or sunlight, not water scarcity.

Answer:

A valley is stricken with drought.