Test nhiệm thu Unit 10: Source of Energy E6.1

Once non-renewable energy sources are used_______________they are gone forever.

• for

• up

• out

• off

Many chemicals have a damaging effect ______________effect environment.

• in the
• with the
• on the
• by the

Renewable energy  is also called”____________energy” because it doesn’t pollute the air.

• toxic
• clean
• dirty
• harmful

. ____________ the pollution it cause, coal still plays an important role in the production of electricity around the world .

• Due to
• Despite
• In spite

• Because of

What ________if  carbon dioxide levels continue to increase?

• happen

•     will happen

• will be happened 

• will be happening

The use of wind energy is growing rapidly because it is widely available and .......................     

• environmental friendly

• environmentally friendly

• environment friendly

• friendly environmental

7.      Using solar panels at home can help_______________ your electric bill and your carbon footprint.

• reduce

• increase

• produce

• convert

Wind power is the most promising ..................... source of energy.

• . non-renewable

• natural

• limited

• alternative

You can save much water by    .......................

• using energy saving light bulbs

• using biogas for cooking

• taking showers instead of baths

• walking or riding a bike to school

. ‘Is it difficult to reduce our carbon footprints?’ ‘________________’

• It depends on the way you think.

• Not at all. Just practicing the 3R’s.

• It’s not if we still rely on fossil fuels.

• I’m not sure. What will happen?