Question

NEED ASAP!!!!

Which of the following is a chemical change?

A. Water vapor in the air turns to liquid water in the form of rain
B. The oxygen in the air forms ozone in presence of UV rays
C. Dust and soot particles being suspended in the air
D. Sulphur dioxide being released in the air

Answer 1

B. The oxygen in the air forms ozone in the presence of UV rays

Answer 2

D. Sulfur dioxide being released in the air