coal, solar power, wind power
solar power, tidal power, wind power
biofuel, biomass, coal, ethanol, fossil fuel, gas, hydro-electric power, nuclear power, peat
coal, ethanol, fossil fuel, gas, hydro-electric power wind power
the source of energy we read about most in my country is green energy. In my opinion, we should use more solar energy. Green energy is best energy for my country. A useful source of my country is wind
coal
sand
metal
conventional greener
produce without saying maintain
four-by-four stark choice
get out of this difficult situation subsistence = enought to live
desperate: tuyệt vọng