The environment

When ice turns into liquid, it .....

• makes

• melt

• melts

• make

     In some big cities, there is a lot of air ............ in summer.

• flood

• laws

• waste

• pollution

The dodo was a type of bird. It is now ......

• waste

• litter

• extinct

• pollution

reduce energy

• use less

• use more

to make new furniture out of old

• upcycle

• recycle

• cycle

• bicycle

    The government should make more ......... to keep the air cleaner.

• pollution

• litter

• waste

• laws

• rubbish

• litter

• waste

Some parts of the world don't get enough rain, while others have frequent .....

• laws

• rubbish

• pollution

• floods

........ paper means we don't need to cut down so many trees.

• Upcycling

• Cycling

• Recycling

• Bicycling

a mixture of smoke, gases, and chemicals, especially in cities, that makes the atmosphere difficult to breathe and harmful for health

• flood

• smog

• fog

• rain