How can the particles and gases from a volcanic eruption affect the temperature of an ecosystem?
a. temperatures would fluctuate.
b. temperatures would fall.
c. temperatures would stay the same.
d. temperatures would rise.

The answer for #3 is c but i don't know why

Put these processes of the water cycle in the correct order, starting at the point where the water is in the lake: 1. water evaporates into the atmosphere 2. rain, snow, or other precipitation falls 3. water collects into larger bodies of water 4. water vapor condenses into liquid water

How manyatoms of mercury are in 1.4214e+1 ml sample