3. It is a mixture of two materials in which different materials are not mixed uniformly, or the materials are can be easily seen.

a. solid-liquid mixture

b. heterogeneous mixture

c. homogenous mixture

4. It is a mixture of two materials in which different materials are mixed uniformly, or the materials are cannot be easily seen

a. liquid-solid mixture

b. heterogeneous mixture

c. homogenous mixture mixture.

5. Oil and water mixture is an example of

a. a solid and liquid mixture

b. liquid and liquid mixture

c. heterogeneous mixture. mixture

6. Sand and rock mixture is an example of

a. a solid and solid mixture

b. heterogeneous mixture

c. homogenous mixture​