The environment

What's biofuel?

• It's fuel that is produced from coal, oil or gas.

• It's fuel that is produced from plants or animal waste.

• It's fuel that is produced from dead biologists.

What's the chemical formula of carbon dioxide?

• CO²

• CO

• H²O

• HCl

Changes in the earth’s weather, including changes in temperature is called...

• weather change

• climate change

• hot change

• exchange

Deforestation is

• cutting down a station

• cutting down a tree in your garden

• cutting down a forest

Harmful chemicals in the air or water -

• rubbish

• excrements

• pollution

• smoke

What can you see in the picture?

• drain

• draught

• drought

• drift

Which of these are fossil fuels? (You can choose more than one.)

• coal

• biomass

• oil

• gas

• wood

Gases that trap the sun's heat are called:

• hot gases

• green gases

• lighthouse gases

• greenhouse gases

The tropical forests are also called:

• old forests

• rainforests

• wet forests

• green forests

The ice in the Arctic and Antarctic is called

• the icycles

• the icebergs

• the ice cups

• the ice caps