13.Ocean and seawater are examples of what kind of mixture?
a.Gel c.Solution

b.Heterogeneous d.Suspension

14.Which of the following sentence describes a heterogeneous mixture?
A.A heterogeneous mixture has a solute and a solvent.

B.A heterogeneous mixture has components that are evenly distributed.

C.The components of homogeneous mixture can be easily identified.

D.Two or more substances combined chemically form a heterogeneous mixture.​