A new plant offered on the market as a hybrid but not as gene modified or gene engineered is almost certainly the result of cross-(blnk)

A new plant offered on the market as a hybrid but not as gene modified or gene engineered is almost certainly the result of cross-pollination.

Explanation:

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.