We now use alternative forms of energy such as solar, wind and hydro electric power._
举一反三
- Solar panels, wind turbines, hydro power and geothermal energy and hydrocarbons (natural gas or coal) can all be used to produce hydrogen (a primary energy).
- We will have to rely more on ________ energy, such as solar and wind power.
- Which of the following is irreplaceable resource? A: solar energy B: petroleum C: wind power D: tidal energy
- In addition to this unreliability, wind power equipment is very expensive ________to the other energy sources and won’t become a viable alternative until we can slash the costs significantly
- Wind power is an ancient source of energy __________ we may return in the near future.