Environmental Issues_Climate Change

According to the speaker, greenhouse gases are produced by...

• heat from the sun

• the actions of people

• the sun's rays, and also the actions of people

• the video doesn't say

Which of these things is a greenhouse gas?

• carbon monoxide

• carbon dioxide

• oxygen

• the video doesn't say

Which of these ways to generate power provides a clean source of energy?

• gas

• oil

• wind power

• they are all clean sources of energy

Which of these things can help reduce levels of carbon dioxide?

• driving to work

• heating with coal instead of gas

• using public transport

• leaving your TV on standby, rather than switching it off

Which of these predictions about climate change does the video make?

• if the planet gets warmer, then polar bears will become extinct

• if the planet gets warmer, then we can expect more floods

• if the planet gets warmer, then fuel will become less expensive

• if the planet gets warmer, then sea levels will rise

The word extinct means...?

• to become scarce or rare

• in need of protection

• to become endangered

• something that has died out, and no longer exists

Choose the best answer to complete this statement:

If the planet continues to heat up, _______ expect to experience more extreme weather.

• then will we

• then can we

• then we can

• then should we

Which of these things isn't mentioned in the video?

• wave energy

• car pooling

• coral reefs

• heat waves