The answer is b it occurs in plant animals and bacteria
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.
The nucleus is the center of our cells. it contains our chromosomes and genetic information the produces life.
Your answer is D. untestable and open to change
