Chemistry, 50 points!!!

- both b and d.

-since b and d are the closest coastlines then that makes it the most affected.

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b.final

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.