Describe Dr. Kettlewell?
experiment in your own words
add more than just a sentence pls!

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 answer is option a.

i think that the answer is c

i think its 100.

hope this !