Fact 1: Acid rain has a negative impact on water quality.

Fact 2: H20 Bottled water was generally consumed last year.

Given the two facts above, answer the question "What has a negative impact on H20 quality?" with the following options: 
- chickenpox
 - rainfall
 - bottled water
 - Pesticides
 - flooding
 - the amount of people drinking
 - disease
 - acid rain


 

        acid rain 