Which of the following statements are true? A solid can diffuse into a liced, but a solid cannot diffuse into another solid.
A solid can diffuse into both a liquid and another solid.
A liquid can diffuse into another liquid.
A gas can diffuse into another gas.

idk i'm not smart

explanation:

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the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

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