It discusses such topics as the atmosphere, the hydrosphere, weather, the structure of the earth, environmentalism, the physics of motion, Newton&#146;s Laws, gravity, and astrophysics.
(It; discusses; such topics as the atmosphere, the hydrosphere, weather, the structure of the earth, environmentalism, the physics of motion, Newton&#146;s Laws, gravity, and astrophysics)
It
discusses
such topics as the atmosphere, the hydrosphere, weather, the structure of the earth, environmentalism, the physics of motion, Newton&#146;s Laws, gravity, and astrophysics