Dna plays a major role in heredity composing the genes that are passes down from the parent to offspring it also plays a major role in the everyday working of your cells. It does this by creating molecules such as enzymes that regulate cell functions. These enzymes belong to a larger class of molecules known as

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Explanation:

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.

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.