You are presented with the question "what is chlorophyll essential for?" and the following answer choices: 
- staying warm
 - photosynthesis
 - survival
 - hydrogen and oxygen
 - germinating
 - Most plants
 - plant reproduction
 - plant respiration

Now knowing that chlorophyll is used for absorbing light energy by plants and it is essential in the absorption of light energy for photosynthesis, choose the best answer.


 

  photosynthesis       