Answer:
the answers are 2 and 3 because its asking why there is much more water than P than Q
D, a net transfer of energy
I think the answer to this would be A
Answer: Air pollution is responsible for seven million deaths each year in the US
Explanation: https://www.who.int/health-topics/air-pollution#:~:text=The%20combined%20effects%20of%20ambient,cancer%20and%20acute%20respiratory%20infections.