THE NATURAL ENVIRONMENT

From Earth's surface, we face the sky, each day watching an endless kaleidoscope of colors and movement. We are treated to that entertaining display, and allowed to live, through the miraculous development of a light, semi-transparent atmosphere on our planet and the way it plays with the sunlight filtering through it.

In this lesson, we look at the fundamental characteristics of the air layer shielding us from space, and discuss some of the basic interactions between the atmosphere and sunlight.