In eukaryotes, gene regulation occurs at the level of transcription with the of certain regulatory proteins. which proteins encourage binding of the rna polymerase to the promoter? select one of the options below as your
a. activator
b. enhancer
c. silencer

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.