You are presented with the question "Intense _  has a negative impact on an organism" and the following answer choices: 
- influenza
 - Sunlight
 - Solar energy
 - competition
 - growth
 - air
 - Dehydration
 - darkness

Now knowing that intense heat has a negative impact on an organism and intense Sunlight and Heat Intense sunlight and heat are present in all arid areas, choose the best answer.


 

  Sunlight       