A scientist a new species in a rain forest. The species was small and green in color. She examined one of its many cells and found that cell had a nucleus but no cell wall.

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.

light dependent reactions:

light independent reactions:

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