Chapter 41

Question 1

Define the term climate change

Answer 1

Climate change is any long-term change, usually in terms of decades, to Earth’s climate.

Question 2

Define the term, global warming

Answer 2

Global warming is the increase in Earth’s average surface temperature due to the effect of greenhouse gases.

Question 3

What is the carbon footprint

Answer 3

A carbon footprint is a measure of the amount of carbon that is produced from the activities carried out by humans.

Question 4

List 5 things that are effecting climate change

Answer 4

• Rising sea levels
• Storms and floods
• Drought.
• Shrinking glaciers
• Heatwaves

Question 5

Name 6 ways that humans release carbon dioxide

Answer 5

• Burning fossil fuels
• Production of lime to make cement
• Extraction (removal), processing, transport and distribution of fossil fuels
• Disposal of all household waste
• Addition of fertiliser onto the soil
• Agriculture

Question 6

Name 3 natural activities that releas carbon dioxide

Answer 6

• Animal and plant respiration
• Volcanic eruptions
• Carbon dioxide exchange between the oceans and the atmosphere.

Question 7

What is the greenhouse effect

Answer 7

The greenhouse effect occurs when gases in Earth’s atmosphere prevent some of the heat from escaping into space.

Question 8

Name the 4 main greenhouse gases

Answer 8

• Carbon dioxide (CO,)
• Methane (CHA)
• Nitrous oxide (N,°)
• Water vapour (H,O).