Which statement is true?

Rocks do not contain any mineral matter.

Most rocks are composed of a single mineral.

Most rocks are made up of a mixture of minerals.

Respuesta :

The last Most rocks are made up of a mixture of minerals.  Most rocks are made up of a mixture of minerals.is correct because rocks contain a combination of minerals not just one 
Its C)Most rocks are made up of a mixture of minerals. The other person is correct also.