What is anatomy? why we study anatomy? purpose of study

Anatomy is a branch of biology. We study anatomy to study about human body ,its structure and functions

Explanation:

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.

because it travels in smaller waves then all other colors, causing it to be the most visible color