What is responsible for identifying foreign invaders and remains in the system for a long period of time?

antigens

red blood cells

lymph nodes

axons

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.

prism b but im not for sure

yes? sounds right, but you didn’t ask a question.

carbon

explanation: