Climate

Question 1

Name the gases that make up the Earth’s atmosphere.

Answer 1

Nitrogen, oxygen, argon, carbon dioxide

Question 2

Name two greenhouse gases.

Answer 2

Carbon dioxide, methane.

Question 3

What is meant by the term global warming?

Answer 3

The gradual increase in the air temperature at the surface of the Earth

Question 4

What percentage of the Eath’s atmosphere is comprised of oxygen?

Answer 4

21%

Question 5

What percentage of the Eath’s atmosphere is comprised of carbon dioxide?

Answer 5

0.04%

Question 6

Name two processes that add carbon dioxide to the atmosphere.

Answer 6

Respiration, combustion.

Question 7

Name two processes that remove carbon dioxide to the atmosphere.

Answer 7

Photosynthesis, dissolving in the oceans

Question 8

Give two ways that human activities increase the concentration of carbon dioxide in the atmosphere.

Answer 8

Burning fossil fuels, deforestation, farming cattle.

Question 9

Explain what climate change is

Answer 9

Long term changes to weather patterns

Question 10

Describe the link between global average air temperature and carbon dioxide concentration.

Answer 10

The patterns in temperature increase and carbon dioxide increase are similar. Human activity is very likely to be the cause.

Question 11

Which gas makes up about 78% of the Earth’s atmosphere?

Answer 11

nitrogen

Question 12

What is meant by the term greenhouse gas?

Answer 12

A gas that contributes to the greenhouse effect, such as carbon dioxide.

Question 13

Explain the greenhouse effect

Answer 13

When energy from the Sun is transferred to the thermal energy store of gases in Earth’s atmosphere, keeping the surface of the Earth warmer than it would otherwise be

Question 14

Explain why using public transport more often can help reduce greenhouse gas emissions

Answer 14

Using fewer cars, less often. Fewer fossil fuels are burned so less carbon dioxide enters the atmosphere.

Question 15

Explain why generating electricity from renewable resources can help reduce greenhouse gas emissions

Answer 15

Burning fewer fossil fuels

Question 16

Explain why buying and wasting less can help reduce greenhouse gas emissions

Answer 16

The processes required to make new things requires burning fossil fuels, mining for resources and/or making space for crops. All of these increase the concentration of carbon dioxide in the atmosphere

Question 17

Where do all the materials we originally use come from?

Answer 17

Earth’s crust, atmosphere, oceans

Question 18

What is meant by the term recycling?

Answer 18

Collecting and processing materials that have been used so that these materials can be used again.

Question 19

Why is it particularly important to recycle some materials?

Answer 19

Resources will not last forever and the faster we extract them, the sooner they will run out.

Question 20

Give two advantages of recycling.

Answer 20

Resources last longer, uses less energy than extracting new materials, reduces waste and pollution.