What is the difference between cell membrane and visking tubing

Explanation:

cell membrane- is a semipermeable tissue that selectively allows the movement of materials in and out of a cell while a visking tubing is a artificial cee membrane

answer; i believe the correct answer is (a)0

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.