UNIT 7 ENVIRONMENTAL PROTECTION

We should not only ______ more trees but also put much more effort into protecting forests.

• plant

• reduce

• stop

• cut down

People all over the world are working to help save _______ animals from extinction.

• danger

• endangered

• dangerous

• dangerously

A _______ is the total amount of greenhouse gases that are generated by our actions.

• carbon footprint

• carbon dioxide

• global warming

• ecosystem

Some manufactures offer money for the return of batteries, so that they can ________ them safely.

• waste

• dump

• recycle

• throw away

______ power is the use of wind energy to generate useful work.

• Natural gas

• Coal

• Oil

• Wind

Around 8.7 million ____ of plants and animals exist on the Earth.

• means

• classes

• styles

• species

______ pollution is the contamination of water such as lakes, rivers, oceans and groundwater.

• Water

• Air

• Soil

• Noise

Forest fires ______ in environmental damage.

• contribute

• result

• lead

• create

Cars and trucks pump out thousands of tonnes of poisonous _____ every year.

• pollutants

• exhaust pipes

• fumes

• chemicals

___________ by the 3Rs?- They are Reduce, Reuse, and Recycle.

• What are they

• What do you mean

• What do you use

• What does it stand

Answer explanation

stand for = What do you mean by