Addition of Artificial Nitrogen Fertilizers to Agricultural Lands Causes an Increase

Multiple Choice

Addition of artificial nitrogen fertilizers to agricultural lands causes an increase in nitrification and denitrification by bacteria.These processes in turn release nitrous oxide (N₂O) into the atmosphere.What are the implications of additional nitrous oxide in the atmosphere?

A) It is a harmless, inactive gas that has little or no effect.
B) It increases smog and acts as a greenhouse gas.
C) It lowers atmospheric temperatures.
D) It remains near Earth's surface, causing smog but not climate change.
E) It is fixed by soil bacteria and therefore can increase plant growth.