You are presented with the quiz "What will bears do if the amount of available food and water decreases?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says 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 "bears are common but elusive animals". 

So, what's the best answer to the question?


 

     they leave the environment      