Select the characteristic that makes viruses different than bacteria.

a.)viruses are not made out of cells.
b.)pathogenic viruses cause diseases.
c.)viruses are found everywhere.
d.)viruses need to eat almost constantly to remain alive.

Viruses need to eat almost constantly to remain alive.

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.