Which human activity would most likely have a positive impact on the environment? using pesticides to decrease populations of birds of prey increasing emissions into the atmosphere to decrease the ph of lakes using parasites for biological control of pests to increase crop yields engaging in uncontrolled hunting and trapping to reduce populations of carnivores

The correct option is 'Using parasites for biological control of pests to increase crop yields.'

Explanation:

Using The method of biological control for killing pests is better than using a chemical control. Chemical controls such as pesticides can lead to the pests developing resistant genes against the pesticides. As a result, the pesticides will no longer be useful for killing pests. Hence, killing of pest through biological controls is a better method. For example, the usage of parasites for killing a certain kind of pest. This will increase the crop yield.

voluntary muscles are controlled by the cerebellum.

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.