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

1. Which of the following is the best conclusion that can be made from this graph?

A atmospheric carbon dioxide levels have been decreasing since 1960 B Hawaii has a lot of carbon dioxide C humans have been working hard to decrease carbon dioxide levels D atmospheric carbon dioxide levels have increased steadily since 1960

2. Which of the following gases DOES NOT trap heat?

A carbon dioxide B nitrogen C water vapor D methane

3. Compared to other greenhouse gases, carbon dioxide is very effective in trapping heat near the surface of the Earth.

A true B false

4. Which of the following have been linked to climate change?

A droughts B flooding C melting of polar ice caps D all of the above

5. Some greenhouse gases are naturally present in the Earth's atmosphere

A True B False

6. Which of the following is contributing to an increase in carbon dioxide in the atmosphere?

A deforestation B photosynthesis C oceans D all of the above

7. Things you can do to help decrease global warming include:

A Eat more ice cream. B Keep your freezer door open. C Keep your air conditioner on high. D Turn off your lights when you’re not using them.

8. Melting of glaciers and polar ice caps....

A will result in cooler temperatures in the Arctic B will result in sea-levels rising C Will have no effect on ecosystems D None of the above

9. What is the definition of weather?

A a period of abnormally dry weather that lasts at least 2 years B the specific condition of the atmosphere at a particular place and time C a complex community of organisms and the community's environment D a release of toxic gas

10. What is the average weather for a particular time and region called?

A drought B weather C emissions D climate