Which of these could increase average global temperatures?

Burning fossil fuels, over harvesting of petroleum.

Explanation:

If you cold attach the answers, I can give you a better answer.

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.

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explanation:

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