Which best describes a mixture?
It has a single composition, and it has a set of characteristics that does not change.
It can have different compositions, but it has a set of characteristics that does not change.
OIt has a single composition, but it has a set of characteristics that does change.
It can have different compositions, and it has a set of characteristics that does change.

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dhb548

Answer:

this my answer

/hope's helps/

Explanation:

It can have different compositions, but it has a set of characteristics that does not change.

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