Solids have definite shapes.This is because A. The forces of cohesion of the molecules within are very much less in them B. The forces of cohesion are very large C. The forces of adhesion are large D. The forces of adhesion are less

The correct answer is: B. The forces of cohesion are very large.

Cohesion is the force that holds together the particles of a substance. In solids, the particles are held together by strong covalent or ionic bonds. These bonds are much stronger than the forces of adhesion, which are the forces that hold together two different substances. As a result, solids have definite shapes.

Option A is incorrect because the forces of cohesion are actually very large in solids. Option C is incorrect because the forces of adhesion are not large in solids. Option D is incorrect because the forces of adhesion are not less in solids.