Unit 10 class 7

Using energy that produces carbon dioxide is bad for the _______

• air

• environment

• source

• energy

We install _____ panels on the roof of our house to catch the sun's energy.

• sun

• sunny

• solar

• heat

______ source of energy will last forever.

• Non-renewable

• Hydro

• Nuclear

• Renewable

Do you often walk or ____ a bike when traveling long distances?

• go

• travel

• ride

• drive

Remember to turn off the _____ when leaving the room.

• heat

• lamp

• electricity

• light

I think that using biogas is cheap and _______

• expensive

• limited

• abundant

• polluting

Wave energy is a source of __________ energy.

• environment friendly

• environmentally friendly

• environmental friendly

• environmentally friendliness

The wind, the sun, and the wave are some types of _______ sources of energy.

• changeable

• alternative

• cheap

• costly

Hydro power is ______ because dams cannot be built in certain areas.

• limited

• unlimited

• abundant

• plentiful

When energy comes from wind, we call it wind energy.

• True

• False