With what equation and what numbers to plug in, i can do the rest.
the retina of a human eye can detect light when radiant energy incident on it is at least 4.0 x 10^-17 j. for light of 565 nm wavelength , how many photons does this energy correspond to?

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.