Is color and odor a chemical property or physical property?

by cartels in other countries, shipped by air, mail, or land. i cant really see your answer choices : /

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.

the correct answer to this question is 2