Answer:
a nuclear weapons treaty (nuclear non-proliferation)
I’m not sure what you mean
Weather is known over short periods of time and can be inaccurate, climate is figured out over long periods of time and effects a larger area
1. Destruction on land - Lava, Lava rocks flying
2. Pollution - The smoke in the air
3. The environment surrounding the volcano
The answer is a. I'm guessing cause I can't see the question all the way