Climate change is long term changes in temperature and _______ patterns.

What is a greenhouse gas?

• Gases in the Earth's atmosphere that trap heat.

• Gases you find in greenhouses.

• Gases in space that trap heat.

Which of these is a greenhouse gas?

• Water vapour.

• Carbon dioxide.

• Methane

• Nitrous oxide.

Are fossil fuels good for the planet?

• Yes.

• No.

Renewable energy resources produce less_____________ than fossil fuels.

• pollution

• energy

• wind

• light

Trees absorb carbon dioxide from the atmosphere for photosynthesis and store it. This means that trees are a carbon ____.

Which of these is likely to result from global warming?

• Droughts.

• Reduction in greenhouse gases.

• Rise in ocean levels.

• Decrease in air pollution.

Which of these is an effect of climate change?

• Sea level rises.

• Droughts.

• Mountains.

• Oceans.

The graph shows the increase in atmospheric

carbon dioxide concentration over several

decades.

Increasing carbon dioxide levels will directly affect

Earth's....

• magnetic and gravitational fields.

• weather and climate systems.

• mantle convection.

• rotation speed.

Why do we need to pay attention to climate change?