Unit 10- SGK lớp 7

____________ source of energy is the source that can’t be replaced after use.

• Renewable
  

• Natural

• Effective

• Non -renewable

If everyone ____________ fossil fuels, they will quickly run out.

• Protects

• wastes

• consumes

• saves

Non-renewable energy sources will run out because they are ____________.

• helpful

• limited

• harmful

• unlimited

Solar energy is a green, clean, and ____________ energy source.

• polluting

• non-renewable

• renewable

• recyclable

Nuclear energy is not ____________ and it is not green because of radioactive waste.

• safe

• dangerous

• polluted

• cheap

Hydro power is the most efficient way to ____________ electricity in many countries.

• create

• waste

• generate

• turn

Renewable energy sources are better for the environment and they will not ____________.

• run out

• rely on

• turn off

• put on

I can ____________ much energy by turning off the TV when not watching it.

• use

• make

• spend

• save

Instead of using electricity to make wind - like a fan - wind turbines use ____________ to make electricity.

• oil

• solar

• wind

• water

Do your parents ____________ coal as well as wood to make a fire for cooking?

• burn

• heat

• reserve

• produce