Which of these steps would help to reduce the chances of a mudslide occurring in a hilly region? A
leaving the trees and other plant cover on the hillsides

B
removing all trees and plant cover from the hillsides

C
building fences at the bases of the hills

there’s no image attached but i can if you want: )

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.