Why is the principle about the relationship between mass volume always true of substances , but not always true for mixtures

For pure substances, the mass and volume will always be the same or will always change the same way because all substance are the same throughout.

While for mixtures, you can have varying amount of each component therefore mass and volume will not change the same way for substances.

- both b and d.

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

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answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation: