Which of the following pairs share the same empirical formula?

select one:
a. ch4 and c2h4
b. pbcl2 and pbcl4
c. n2o5 and no2
d. c2h6 and c4h12

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.