You are presented with the question "Energy enters what in the form of sunlight or chemical compounds." and the following answer choices: 
- biomes
 - fire
 - light
 - Energy.
 - Energy
 - LEDs
 - propagate
 - photons

Now knowing that energy enters ecosystems in the form of sunlight or chemical compounds and biomes are global ecosystems, choose the best answer.


 

 biomes        