You are presented with the question "Animals may leave an environment to _." and the following answer choices: 
- revive
 - Energy.
 - ecotourism
 - Movement
 - survive
 - reproduce
 - vacation
 - perish

Now knowing that if the amount of available food and water decreases in an environment then animals may leave that environment to find food and water and animals have to have food, water, shelter to survive, choose the best answer.


 

     survive    