How many years earlier, on average, do smokers die than nonsmokers?

10 years

Explanation:

"People who smoke take at least 10 years off their life expectancy, a new study has found. On the other hand, those who kick the habit before age 40 reduce the excess risk of death associated with continued smoking by about 90%, according to the study in Thursday's New England Journal of Medicine."

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so we know the answer cannot be c because no insect or animal starts as an adult

the answer is a. a swimming larvae

because since they are sea animals they automatticaly have to know how to swim they cannot just sink to the bottom

sorry if this is the incorrect answer.

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