Which of the following is the best example of a way human lifestyles affect environmental systems?
a. agriculture causes water pollution when fertilizers and pesticides flow into lakes and rivers.
b. burning fossil fuels causes air pollution by decreasing water vapor in the atmosphere.
c. using aerosol sprays causes acid rain by increasing ozone (o3) in the atmosphere.
d. using radioactive materials causes ground pollution when chlorofluorocarbons (cfcs) seep into the ground.