Waterfalls can be used to produce ______ power.
举一反三
- ____ is used to produce electric power.
- 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).
- Nuclear power is the use of nuclear reactions that release nuclear energy to generate _____, which most frequently is then used in steam turbines to produce electricity in a nuclear power plant.
- Burning waste ______ energy that can be used for electric power or heating.
- All of the following can be used to express power, except __________. A: moving into someone’s space B: silence C: touching someone D: gestures E: all of these can be used to express power