CBSE Class 9 Social Science Atmosphere and Climate (Class 9 NCERT New) Quiz 8

1. How does this refrigerator-freezer model compare with others in terms of energy efficiency?

A it is much more efficient than other models B it is much less efficient than other models C it is slightly more efficient than other models D it is slightly less efficient than other models

2. During summer in the Southern Hemisphere, the Northern Hemisphere experiences

A A tilt toward the sun B winter C summer D excess rainfall

3. Which of the following gases is most responsible for the greenhouse effect?

A nitrous oxide B methane C oxygen D carbon dioxide

4. What are greenhouse gases?

A gases that cause climate change B gases that emit green smoke C gases that are used to make green colored glass

5. Industrialization is a contributing factor to climate change.

A True B False

6. Some of the Earth's most fragile ecosystems that could be greatly impacted by climate change live in the

A tropical rainforest B tundra C oceans D African Sahara desert

7. As a result of climate change food prices could

A increase B decrease C stay the same

8. Climate change can cause increases in asthma, allergies and heart disease.

A True B False

9. Visible light reaches Earth’s surface while infrared light is trapped as heat. Which characteristic of Earth’s atmosphere causes this to happen?

A the hole in the ozone B the greenhouse effect C atmospheric pressure D the inversion layer

10. The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?

A lower levels of ozone in the atmosphere B lower levels of nitrogen in the atmosphere C higher levels of carbon dioxide in the atmosphere D higher levels of oxygen in the atmosphere