What structures can be found in the axial region of the body?

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

b.a device that inputs heat into a cool object

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it