Pollution

The ___________ falling from the sky can be dangerous.

• acid rain

• acid train

• acid grain

• acid pain

________________ is caused by fumes, smoke and other things like that.

• water pollution

• air pollution

Sewage dropped by factories or oil spills by the huge ships are one of the most causes of_______________

• air pollution

• water pollution

The thing that goes at the back of the car and pollutes the air is_______________

• foams

• fames

• fumes

The increase of the temperature is called _______________

• global warning

• global warming

The procedure that hot air goes through ozone layer and cant leave the atmosphere is _______________

• greenhome effect

• greenhouse effect

The full name of CO2 is _______________

• carbon dioxide

• dioxide carbon

Solar, water and wind are examples of _______________

• renewable energy sources

• fossil fuels

How do we call animals which are threatened with extinction _______________

• dangerous species

• endangered species

When we create something new out of old materials we_______________

• cycle

• recycle