Because, they are renewable resources and they can replaced by people
Yes. Only organic items are renewable. (Oil, crops, etc.) Basically, only carbon-based things are renewable.
Gases
they come from earths atmosphere and gases
no its fossil fuel
HIDROGEN
They slow the loss of heat
Nitrogen and oxygen,
the entire atmosphere...
Nitrogen & oxygen.
These gases are nitrogen, oxygen, argon, carbon dioxide.
" Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable(naturally replenished)." - Wikipedia.So no, renewable energy has no harmful gases whatsoever.
Hydrogen and helium