Harming an animal species causes that animal 's population to decrease, and killing snakes is more than unnecessary and harmful to the ecosystem. Given these facts, what can killing snakes cause among the following options:
- Snake population decrease.
 - DNA damage and mutations
 - Snake population variation.
 - death and devastation
 - dead organisms
 - Snake population increase.
 - Destroy crops
 - Snake population stabilization


 

 Snake population decrease.        