Fact 1: Eating something that contains pollutants has a negative impact on an organism 's survival.

Fact 2: Lakes have been found to be polluted with mercury, rendering fishes unsafe to eat.

Given the two facts above, answer the question "what has a negative impact on an organism's survival?" with the following options: 
- eating food
 - eating fish
 - eating water
 - liver cancer
 - Greenhouse gasses
 - fossil fuels
 - eating mercury
 - harmful substances


 

       eating mercury  