Question: Acid rain caused by industrial pollution greatly reduces the number of trees in a forested region that is home to a particular species of bird. How might this decrease in the number of trees most likely affect this bird population?

  Options: 
 A. The population will adapt to ground dwelling.
 B. The population will decrease due to lack of resources.
 C. The population will stabilize when it moves to another region.
 D. The population will increase as predators move out of the region.
Answer: B