Mary is campaigning for improved air quality in her city. she is very concerned about carbon and methane outputs, but not phosphorous. why is that? a. she thinks phosphorous makes a positive contribution to air quality. b. phosphorous is most commonly found as phosphate rock. c. she doesn’t know a lot about phosphorous. d. she doesn’t consider phosphorous to be a greenhouse gas.

The answer is; D

Carbon dioxide and methane are potent greenhouse gases. They cause heating of the lower atmosphere, by trapping sunlight, that results to climate change. Due to the higher melting and boiling temperatures of phosphorus, it is rare that it occurs as gas in room temperatures. Phosphorus, therefore, does not pose a great threat of climate change.

the answer is tropical areas. the tropical areas obtain more

radiant energy from the sun than they lose to space through terrestrial

radiation, and vice versa for polar areas. earth has an energy remaining in the

tropics and an energy scarcity for the polar areas.

explanation: