Fact 1: Darkness has a negative impact on photosynthesis.

Fact 2: Plants feed themselves through the process called photosynthesis.

Given the two facts above, answer the question "What has a negative impact on how plants feed themselves?" with the following options: 
- darkness
 - disease
 - influenza
 - sunshine
 - viruses
 - Pollution
 - water
 - light


 

 darkness        