Scientist think that dolphins and whales may have evolved from a common ancestor what evidence support this hypothesis?

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the answer is third world countries, take for instance china, they restricted each family with only one child,

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a physical change is being made.

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.