Which observation proves that a cell is a eukaryote? A. It has ribosomes inside the cell. B. It is surrounded by a cell membrane. C. It has enclosed organelles inside the cell. D. It has DNA in the cell.

The answer is C.

Explanation:

It can't be A. because prokaryotes have ribosomes. It can't be D. because prokaryotes have a single loop of DNA and plasmids. It has to be C. because only eukaryotes have enclosed organelles in them.

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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.

d we did this already