Atmosphere - layer of gases that surrounds a planet or moon held by gravity (ocean of air)
Global Climate Change. Identifiable change in the climate of Earth as a whole that lasts for an extended period of time (decades or longer) –Usually.
THE GREENHOUSE EFFECT 6.E.2A.2. What is a green house? A greenhouse is made of glass. It traps the Sun's energy inside and keeps the plants warm, even.
