You are presented with the question "If a planet becomes too hot, then it cannot maintain what?" and the following answer choices: 
- heated soil
 - food and shelter
 - warm temperature
 - Quality of life
 - They may not survive.
 - Animal survival
 - balanced ecosystem
 - hot atmosphere

Now knowing that if a planet becomes too hot then that planet cannot sustain life and sustainable, organic agriculture is predicated on such balanced ecosystems, choose the best answer.


 

       balanced ecosystem  