Why is atomic radius not a well-defined quantity? a. the radius of a given atom is widely variable. b. units of length are not small enough. c. the boundary of an electron cloud is not distinct. d. scientists are not concerned with measuring atomic radii.

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.