EVR 1001 chapter 14- Questions and Answers
1. planting trees Which of these would NOT contribute to a global increase in
temperature?
2. solar, nuclear, and geother- Switching from fossil fuels to energy would significantly
mal decrease the release of carbon dioxide into the atmosphere.
3. Milankovitch cycles What are the periodic variations in Earth's rotation and orbit
around the sun that alter the way solar radiation is distributed
over Earth's surface?
4. 4 metric tons For every metric ton of carbon dioxide emitted as a result of
changes in land use (e.g. deforestation), approximately how much
is emitted from industry?
5. Human activities are send- The figure indicates a net accumulation of CO2 in the atmosphere
ing more CO2 into the at- of approximately 15 billion metric tons per year. Based on the
mosphere than is moving figure, what is causing this?
from the atmosphere to the
surface.
6. have been slowly se- Carbon-based fuels in the lithosphere .
questered over many mil-
lions of years
7. gas bubbles trapped in ice Scientists evaluate concentrations of gases and other atmospheric
constituents from the distant past by examining which of the
following?
8. increases As the CO2 level increases up to 600 µmol mol-1, how does
ragweed pollen production change?
9. increases As the CO2 level increases up to 600 µmol mol-1, how does the
ragweed allergen concentration change?
1/8
, 10. cannot tell from the data If the CO2 level increases above 600 µmol mol-1, how would rag-
weed pollen production and the allergen concentration change?
11. yes Do the data support Hypothesis 1 and its prediction--that plants
grown at higher CO2 levels will produce more pollen? (yes or no)
12. yes Do the data support Hypothesis 2 and its prediction--that plants
grown at higher CO2 levels will produce higher concentrations of
allergens? (yes or no)
13. no Do the data prove that increased CO2 levels cause more severe
ragweed allergies? (yes or no)
14. breathing All of the following are anthropogenic factors contributing to
climate change EXCEPT:
15. is less than any of the an- Recent research indicates that the variation in solar output
thropogenic factors affect- .
ing climate change
16. methane Of the following greenhouse gases, concentrations
have increased by the greatest percentage since 1750.
17. climate models Scientist often use which are programs that
combine what is known about atmospheric circulation, ocean
circulation, atmosphere-ocean interactions, and feedback cycles
to simulate climate dynamics
18. 0.9°C According to the graph, how much warmer on average were
global temperatures in the year 2000 than in the year 1900?
19. 50 Roughly % of U.S. citizens live in coastal counties and
are thus vulnerable to rises in sea level.
1. planting trees Which of these would NOT contribute to a global increase in
temperature?
2. solar, nuclear, and geother- Switching from fossil fuels to energy would significantly
mal decrease the release of carbon dioxide into the atmosphere.
3. Milankovitch cycles What are the periodic variations in Earth's rotation and orbit
around the sun that alter the way solar radiation is distributed
over Earth's surface?
4. 4 metric tons For every metric ton of carbon dioxide emitted as a result of
changes in land use (e.g. deforestation), approximately how much
is emitted from industry?
5. Human activities are send- The figure indicates a net accumulation of CO2 in the atmosphere
ing more CO2 into the at- of approximately 15 billion metric tons per year. Based on the
mosphere than is moving figure, what is causing this?
from the atmosphere to the
surface.
6. have been slowly se- Carbon-based fuels in the lithosphere .
questered over many mil-
lions of years
7. gas bubbles trapped in ice Scientists evaluate concentrations of gases and other atmospheric
constituents from the distant past by examining which of the
following?
8. increases As the CO2 level increases up to 600 µmol mol-1, how does
ragweed pollen production change?
9. increases As the CO2 level increases up to 600 µmol mol-1, how does the
ragweed allergen concentration change?
1/8
, 10. cannot tell from the data If the CO2 level increases above 600 µmol mol-1, how would rag-
weed pollen production and the allergen concentration change?
11. yes Do the data support Hypothesis 1 and its prediction--that plants
grown at higher CO2 levels will produce more pollen? (yes or no)
12. yes Do the data support Hypothesis 2 and its prediction--that plants
grown at higher CO2 levels will produce higher concentrations of
allergens? (yes or no)
13. no Do the data prove that increased CO2 levels cause more severe
ragweed allergies? (yes or no)
14. breathing All of the following are anthropogenic factors contributing to
climate change EXCEPT:
15. is less than any of the an- Recent research indicates that the variation in solar output
thropogenic factors affect- .
ing climate change
16. methane Of the following greenhouse gases, concentrations
have increased by the greatest percentage since 1750.
17. climate models Scientist often use which are programs that
combine what is known about atmospheric circulation, ocean
circulation, atmosphere-ocean interactions, and feedback cycles
to simulate climate dynamics
18. 0.9°C According to the graph, how much warmer on average were
global temperatures in the year 2000 than in the year 1900?
19. 50 Roughly % of U.S. citizens live in coastal counties and
are thus vulnerable to rises in sea level.
