What kind of energy is it ?
geothermal energy
What kind of energy is it ?
Wind energy
For many people living in rural area, biogass is a ______ source of energy.
cheap
The alternative sources of energy like the sun and wind are not only plentiful but also______ and safe to use.
clean
Wind is a renewable energy source because we cannot_________it.
run out of
What kind of energy is it ?
hydro energy
Nuclear energy can provide enough electricity for the world's needs, but it is_______.
dangerous
What kind of energy is it ?
solar energy
What kind of energy is it ?
biomass energy
What kind of energy is it ?
non - renewable energy
What kind of energy is it ?
nuclear energy
Hydro energy is ________because it requires dams.
expensive