The stomata are responsible for
a. translocation and transpiration
b. leaf growth and develop
c. regulating water loss and gas exchange
d. transport of water and food

c) regulating water loss and gaseous exchange.

Explanation:

Transpiration is movement of water through a plant and evaporation of water from aerial parts like the leaves, stems and flowers.

Stomata is then the tiny opening pore mostly found on the under surface of plants leaves.

They serve two functions:

1) transpiration

2) they regulate gaseous exchange.

Air enters into the plant through these openings and water goes into the atmosphere through them as well.

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.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link: