Which statement is true about the substances in a mixture?

they change their composition

they retain their chemical properties

they always consist of the same element

they are always in the same state of matter

They retain their chemical properties

Explanation:

Mixture is a substance which has two or more components which do not combine chemically and do not have any fixed ratio in which they are present.

For example: Air is a mixture which consists of various gases, water vapors and various particles in solid form which are not present in any fixed ratio, do not combine chemically and thus retain their chemical properties.

Thus the only true statement about substances in a mixture is that they retain their chemical properties

false

because it does not have the potential to be entirely used up

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.