Grade 7 Vocabulary and Grammar Quiz unit 10

_________ energy sources can be used to create energy, generate electricity, or drive big machinery but they are harmful to the environment.

• Solar

• Non- renewable

• Wind

• Renewable

_________ energy is produced by collecting sunlight and converting it into electricity.

• Solar

• Wind

• Hydro

• Nuclear

When energy comes from_________, we call it hydro energy.

• nuclear

• wind

• sun

• water

The energy from the _________ is renewable because we can't use it all up.

• Sun

• Gas

• Oil

• Coal

The sun and the wind are other _________ sources of energy.

• alternative

• limited

• harmful

• polluted

Fossil fuels are _________energy sources.

• solar

• renewable

• non- renewable

• wind

A non- renewable source of energy can be used to power machinery, but it also _________the environment.

• cleans

• pollutes

• helps

• protects

We will use _________energy sources like wind and solar energy to solve the problem of pollution.

• non- renewable

• renewable

• limited

• expensive

Hydro power is_________ because dams cannot be built in certain areas.

• limited

• unlimited

• abundant

• dangerous

Coal, natural gas and oil are called _________.

• solar energy

• fossil fuels

• biogas

• nuclear energy