Answer:
Plants that have many periods of reprodution are called perrenials.
~batmans wife dun dun dun....
They would study C. Mollusk
Answer:
Gas Sulfur Dioxide and Ash
Explanation:
Gas sulphur dioxide and ash have a cooling effect on the surrounding environment after a volcanic eruption. The gas sulphur dioxide has special properties which allows it to reflect sunlight away from Earth. It also reflects other volcanic gases in the atmosphere, which ensures cooling at the site of the volcano.