Which of the following is true about mixtures and compounds? a. a mixture contains different substances that are not chemically combined with one another. b. mixtures and compounds are both made of two or more different substances. c. a compound forms when different substances chemically combine to form a new substance. d. all of these

D

Explanation:

All of these are true about mixtures and compounds.

Mixtures and compounds are both made of two or more different substances.

The key difference between mixtures and compounds is that a compound is a new substance that forms when other substances chemically combine. The new substance that is formed has different properties from the original substances.

A mixture is simply a physical combination of two or more substances. Some of the individual properties of the original substances are retained by the mixture.

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.

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