2.
Select the correct answer from each drop-down menu.
in
Nitrogen is one of the important elements for life. Nitrogen is present in DNA and proteins. It's also a component of
plants, a pigment that's critical for photosynthesis. Although nitrogen is present in the air, it can't be consumed directly. It's converted
intouable form by

i'm pretty sure it's spores

the correct answer is c   with the systems

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.