Fact 1: Darkness has a negative impact on photosynthesis.

Fact 2: During a solar eclipse , the sky can get quite dark.

Given the two facts above, answer the question "What can have a negative impact on photosynthesis?" with the following options: 
- disease
 - Smoking
 - Pollution
 - seed dispersal
 - solar eclipse
 - scattered light
 - cell division
 - mutation


 

     solar eclipse    