What do you predict would happen to the cytoplasm of the onion cell as salt is added?

If you put the onion cell in a solution with a high concentration of salt the solution is considered hypertonic. That means the onion cell will loose water. The membrane will shrink but the shape of the cell will stay the same because of the cell wall.

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.