In a reaction, the compound breaks down; in a reaction, a single compound is assembled from two or more substances.

a. synthesis; decomposition
b. single-displacement; synthesis
c. decomposition; synthesis
d. decomposition; single-displacement

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.