Why are carcinogens a concern to people? O A. They can cause cancer.
O B. Their effect is unknown.
O C. They hurt the environment.
O D. They can destroy plants.

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.