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Unit 10D Chapter 9 Quiz



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Which of the following gases is an anthropogenic greenhouse gas?
a.
hydrogen
b.
methane
c.
nitrogen
d.
oxygen
 

 2. 

The majority of nitrous oxide emissions comes from
a.
the management of livestock feed and waste
b.
deforestation
c.
coal mining
d.
natural gas extraction
 

 3. 

Which of the anthropogenic greenhouse gases currently has the largest effect on Earth’s climate?
a.
methane
b.
nitrous oxide
c.
carbon dioxide
d.
chlorofluorocarbons
 

 4. 

If human production of greenhouse gases continues at the present rate, by the end of this century Earth’s average global temperature will likely
a.
decrease by 2 ºC to 6 ºC
b.
increase by 2 ºC to 6 ºC
c.
remain relatively constant
d.
increase by over 10 ºC
 

 5. 

Which of the following Canadian provinces is Canada’s largest producer of greenhouse gases?
a.
British Columbia
b.
Quebec
c.
Ontario
d.
Alberta
 

 6. 

The largest amount of Canada’s greenhouse gas emissions comes from
a.
transportation
b.
agriculture
c.
producing and using energy
d.
forestry
 

 7. 

Canada’s forests are
a.
valuable natural resources
b.
carbon sinks
c.
carbon sources
d.
all of the above
 

 8. 

Computer simulations created by scientists show that over the past 50 years, Earth’s climate
a.
changes have mainly occurred due to natural causes
b.
changes have mainly occurred due to human influences
c.
changes have been influenced equally by natural causes and human influences
d.
has not changed
 

 9. 

Which of the following statements is true regarding Earth’s climate?
a.
Greenhouse gas levels are lower today than they have been at any time in the past
800 000 years.
b.
Any major change in current climate conditions will have drastic effects on human civilization.
c.
Earth’s average temperature is warmer than it has ever been.
d.
The current temperature increase is likely to happen more gradually than in the past.
 

 10. 

What have scientists concluded about Earth’s average temperature, by tracking and recording annual average temperature over the past several years?
a.
Earth’s average temperature shows random increases and decreases over time, with no noticeable trend.
b.
Earth’s average temperature has decreased gradually over time.
c.
Earth’s average temperature has shown an upward trend over time.
d.
Earth’s average temperature changes too often to make it useful in predicting future temperatures.
 

 11. 

The highest temperature increases have occurred
a.
near the equator
b.
in the southern hemisphere
c.
in the northern hemisphere
d.
over the oceans
 

 12. 

The size of Earth’s glaciers is
a.
increasing gradually
b.
increasing rapidly
c.
decreasing
d.
staying relatively constant
 

 13. 

Which of the following is a true statement regarding evidence of recent climate changes?
a.
Heat waves are becoming less intense.
b.
Animal and plant species are slowly migrating toward the poles and to higher altitudes.
c.
The northern hemisphere is experiencing less rain and more snow.
d.
Many areas are experiencing shorter growing seasons.
 

 14. 

Which of the following is an example of a natural satellite of Earth?
a.
weather satellites
b.
navigational satellites
c.
the Moon
d.
broadcasting satellites
 

 15. 

What has been responsible for rising sea levels over the past one hundred years?
a.
runoff from melting glaciers, ice caps, and ice sheets
b.
thermal expansion of the oceans.
c.
all of the above
d.
none of the above
 

 16. 

What are the products of photosynthesis?
a.
glucose and oxygen
b.
water and light energy
c.
carbon dioxide and water
d.
oxygen and carbon dioxide
 

 17. 

Methane emissions come from which of the following sources?
a.
rice farming and cattle ranching
b.
the decay of organic material in landfills and sewage treatment plants
c.
coal mining and natural gas extraction
d.
all of the above
 

 18. 

Which of the greenhouse gases is commonly used as a refrigeration agent and has no natural sources?
a.
carbon dioxide
b.
methane
c.
nitrous oxide
d.
chlorofluorocarbons
 

 19. 

The anthropogenic greenhouse effect
a.
causes the natural greenhouse effect
b.
enhances the natural greenhouse effect
c.
offsets the natural greenhouse effect
d.
is weaker than the natural greenhouse effect
 

 20. 

The province of Ontario releases more than
a.
100 thousand tonnes of greenhouse gases per year
b.
200 thousand tonnes of greenhouse gases per year
c.
100 million tonnes of greenhouse gases per year
d.
200 million tonnes of greenhouse gases per year
 



 
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