Which of the following elements might a grower use to alter the quality of light in respect to photosynthesis?
a net awning creating shade
a color filter removing red light
a clear glass pane providing natural sunlight
a timer adjusting the length of exposure to light

because the light is a great source of energy for the plants to survive. (i hope this )

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.

atp is used for energy.

the answer would be..

b. sucking