CBSE Class 9 Social Science Atmosphere and Climate (Class 9 NCERT New) Quiz 6

1. When sulfur dioxide or nitric oxide combine with water and oxygen in the atmosphere,

A temperature inversions are common B acid deposition occurs C industrial smog develops D global climate change develops

2. Manaus and Miami are both locations with a lot of rainfall. Which statement is NOT true about the average precipitation graphs shown below?

A Both locations have six months where the average precipitation is less than 4.0 inches. B The month of peak rainfall in Manaus occurs in March. C Both locations average at least 1.5 inches of precipitation each month of the year. D The wettest part of the year occurs in January-May for Manaus and June-September for Miami

3. Which of the following events could increase Earth's temperature?

A a decrease in the relative percent of greenhouse gases B planting more trees C widespread removal of tropical forests D a reduction in the use of fossil fuels

4. Notice that a sudden change occurred at the start of Day 4 in the graph below. What change in greenhouse gases would cause this change? How would you expect temperatures to change as a result of this?

A Greenhouse gases increased and temperatures will increase. B Greenhouse gases decreased and temperatures will increase. C Greenhouse gases increased and temperatures will decrease. D Greenhouse gases decreased and temperatures will decrease.

5. There are several pieces of evidence that support the theory Earth's climate is changing. Which of the following is not evidence that supports climate change theory?

A heat waves have become more frequent B some species have changed their migration patterns C ice caps around the world are melting D cold snaps are longer and colder

6. Which of these is NOT a greenhouse gas?

A carbon dioxide B oxygen C water vapor D methane

7. If Earth's atmosphere did not contain any greenhouse gases, its climate would

A be more stable and more suitable for life B stay below freezing all the time C be much hotter and dryer D be more extreme, with eight seasons instead of four

8. How do we know how much carbon dioxide was in Earth's atmosphere 2000 years ago?

A it's an estimate made by extrapolating backwards from modern climate data B gas bubbles trapped in ice cores contain air from that time period and have been analyzed C it's really just a guess D evidence found in certain types of rocks and minerals provides clues to CO2 concentrations

9. This greenhouse gas is released from cows we raise for beef and milk, and from waste in landfills as it decays.

A CFCs B carbon monoxide C methane D sulfurous oxide

10. Why do we focus on carbon dioxide in the atmosphere if methane is a more powerful greenhouse gas?

A because carbon dioxide is easier to measure B because we don't know how to deal with the methane, but we do know how to remove excess carbon dioxide C there is less methane being released into the atmosphere, and it doesn't stay as long in the atmosphere as carbon dioxide does