Fact 1: Aplant requires sunlight for photosynthesis.

Fact 2: Sunlight is composed of photons, or particles of solar energy.

Given the two facts above, answer the question "A plant requires _ for photosynthesis" with the following options: 
- proteins
 - photons
 - Light
 - sun's heat
 - nutrients
 - mitochondria
 - sugar
 - plasma


 

  photons       