Which would have a greater molar mass, carbon monoxide or carbon dioxide? why?

Carbon dioxide has a greater molar mass.

Explanation:

This is because carbon dioxide has 2 oxygen atoms increaseing the molar mass and carbon monoxide has only 1.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.