I'll give 20 points to whoever me!
so i have to make 2 paragraphs. 1 for why the plants floated with carbon dioxide to float, and the 2nd one for why the plants didn't float without carbon dioxide. it doesn't have to be long. also would a great deal if you listed sources.

Plants can not survive without carbon dioxide. They use them to create a food supply, energy, and oxygen for cellular respiration.

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.

because of