Greenhouse gases are special gases in the air that trap heat. The most famous one is carbon dioxide, or CO2. We make CO2 when we burn things like gas in cars. Another greenhouse gas is methane. Methane comes from cows and landfills where trash is buried. Water vapor is also a greenhouse gas. It's just water in the air, like the steam you see from a hot cup of tea. These gases act like a blanket, keeping Earth warm.
What do greenhouse gases do?
Make plants growClean the airTrap heatCreate rainWhich of these is NOT mentioned as a greenhouse gas?
Carbon dioxideMethaneWater vaporOxygenWhere does methane come from?
Only from carsFrom cows and landfillsFrom the oceanFrom treesHow are greenhouse gases described in the text?
Like a blanketLike a windowLike a fanLike a cloud