According to Reference Table V, which of the following is the strongest acid?
1) H2O
3) HF
2) NH,
4) HNO2

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.

i think   the answer is c hope i'm right

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.

c

explanation: