Greenhouse Gases Practice Questions

Question 1

Q1. Knowledge Recall (1 mark)

Define the term 'greenhouse effect'.

Question 2

Q2. Application (2 marks)

Explain how the release of methane gas contributes to global warming.

Question 3

Q3. Chemical Equation (3 marks)

Complete the chemical equation for the combustion of propane (C3H8) in the presence of oxygen.

Question 4

Q4. Data Analysis (4 marks)

The following table shows the % contribution of different greenhouse gases to global warming:

Greenhouse Gas

% Contribution

Carbon dioxide

64%

Methane

16%

Nitrous oxide

Calculate the total percentage contribution of all greenhouse gases listed in the table.

Question 5

Q5. Knowledge Recall (2 marks)

State two human activities that contribute to the release of greenhouse gases into the atmosphere.

Question 6

Q6. Application (3 marks)

Explain how reducing deforestation can help mitigate global warming.

Question 7

Q7. Chemical Reaction (3 marks)

Balance the following chemical equation representing the reaction between calcium carbonate and hydrochloric acid:

CaCO3 + HCl → CaCl2 + H2O + CO2

Question 8

Q8. Data Analysis (4 marks)

The concentration of carbon dioxide in the atmosphere has been increasing over time. The diagram below shows the average global carbon dioxide concentration from 1950 to 2020.

[Insert diagram showing increasing carbon dioxide concentration over time]

Estimate the increase in carbon dioxide concentration from 1950 to 2020 using the graph.

Question 9

Q9. Application (2 marks)

Describe one potential impact of global warming on coastal areas.

Question 10

Q10. Knowledge Recall (1 mark)

Name one non-carbon dioxide greenhouse gas.

Others

14%

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