PBIO 1000 EXAM 2 QUESTIONS WITH VERIFIED ANSWERS
One factor that the GWP measures is
a. the projected fuel efficiency of cars
b. how strongly a greenhouse gas absorbs energy
c. which industries are releasing greenhouse gases
d. all of these - Answers - b. how strongly a greenhouse gas absorbs energy
Seasonal fluctuations in carbon dioxide emissions are due to which of these?
a. Overall higher rates of photosynthesis in the summer.
b. Overall higher rates of cellular respiration in the summer
c. Proximity of the Earth to the sun
d. All of these - Answers - a. Overall higher rates of photosynthesis in the summer.
Methane that is released during the extraction and transport of fossil fuels ultimately
affects
a. only the local environment where these events occur
b. the global environment as gases mix in the atmosphere - Answers - b. the global
environment as gases mix in the atmosphere
In which parts of the biosphere is carbon dioxide found?
a. atmosphere
b. ocean
c. land
d. all of these - Answers - d. all of these
One factor that would increase global warming
a. mild weather conditions
b. shifting from natural gas to coal as an energy source
c. increased use of renewable energy sources
d. decreasing dependence on coal as an energy source - Answers - b. shifting from
natural gas to coal as an energy source
What percentage of climate scientists agree with this statement?
"Climate-warming trends over the past century are due to
human activities."
a. 12%
, b. 28%
c. 53%
d. 97% - Answers - d. 97%
What is the effect of the water cycle on global warming?
a. As water enters the atmosphere due to evaporation, it reduces the effect of warming
caused by increasing greenhouse gas emissions.
b. Increased levels of precipitation will ultimately decrease the level of carbon dioxide in
the atmosphere by bringing the gas down into the soil.
c. Water in the atmosphere holds heat and this amount is increasing with climate
change due to evaporative processes.
d. Water is the longest lived greenhouse gas which makes it more problematic than
carbon dioxide. - Answers - c. Water in the atmosphere holds heat and this amount is
increasing with climate change due to evaporative processes.
Which of these gases is generated due to our dependence on fossil fuels?
a. Carbon dioxide (CO2)
b. Methane (CH4)
c. Nitrous oxides (N2O)
d. All of these - Answers - d. All of these
The increase in greenhouse gas emissions that have been released since 1990 are
from which of these?
a. Electricity generated for human use.
b. Earth's rotation.
c. Planting trees in damaged landscapes.
d. All of these - Answers - a. Electricity generated for human use.
The total amount of carbon dioxide in the atmosphere has
a. stayed level between 1975 and 2014
b. decreased from 395 to 330 ppm between 1975 and 2014
c. increased from 330 to 395 ppm between 1975 and 2014
d. all of these - Answers - c. increased from 330 to 395 ppm between 1975 and 2014
Which of the following statements about the water cycle is true?
a. Levels of precipitation decline with global warming
b. Water vapor amplifies the global warming caused by other greenhouse gases.
c. Water is only present naturally as a liquid on Earth
d. All of these - Answers - b. Water vapor amplifies the global warming caused by other
greenhouse gases.
One factor that the GWP measures is
a. the projected fuel efficiency of cars
b. how strongly a greenhouse gas absorbs energy
c. which industries are releasing greenhouse gases
d. all of these - Answers - b. how strongly a greenhouse gas absorbs energy
Seasonal fluctuations in carbon dioxide emissions are due to which of these?
a. Overall higher rates of photosynthesis in the summer.
b. Overall higher rates of cellular respiration in the summer
c. Proximity of the Earth to the sun
d. All of these - Answers - a. Overall higher rates of photosynthesis in the summer.
Methane that is released during the extraction and transport of fossil fuels ultimately
affects
a. only the local environment where these events occur
b. the global environment as gases mix in the atmosphere - Answers - b. the global
environment as gases mix in the atmosphere
In which parts of the biosphere is carbon dioxide found?
a. atmosphere
b. ocean
c. land
d. all of these - Answers - d. all of these
One factor that would increase global warming
a. mild weather conditions
b. shifting from natural gas to coal as an energy source
c. increased use of renewable energy sources
d. decreasing dependence on coal as an energy source - Answers - b. shifting from
natural gas to coal as an energy source
What percentage of climate scientists agree with this statement?
"Climate-warming trends over the past century are due to
human activities."
a. 12%
, b. 28%
c. 53%
d. 97% - Answers - d. 97%
What is the effect of the water cycle on global warming?
a. As water enters the atmosphere due to evaporation, it reduces the effect of warming
caused by increasing greenhouse gas emissions.
b. Increased levels of precipitation will ultimately decrease the level of carbon dioxide in
the atmosphere by bringing the gas down into the soil.
c. Water in the atmosphere holds heat and this amount is increasing with climate
change due to evaporative processes.
d. Water is the longest lived greenhouse gas which makes it more problematic than
carbon dioxide. - Answers - c. Water in the atmosphere holds heat and this amount is
increasing with climate change due to evaporative processes.
Which of these gases is generated due to our dependence on fossil fuels?
a. Carbon dioxide (CO2)
b. Methane (CH4)
c. Nitrous oxides (N2O)
d. All of these - Answers - d. All of these
The increase in greenhouse gas emissions that have been released since 1990 are
from which of these?
a. Electricity generated for human use.
b. Earth's rotation.
c. Planting trees in damaged landscapes.
d. All of these - Answers - a. Electricity generated for human use.
The total amount of carbon dioxide in the atmosphere has
a. stayed level between 1975 and 2014
b. decreased from 395 to 330 ppm between 1975 and 2014
c. increased from 330 to 395 ppm between 1975 and 2014
d. all of these - Answers - c. increased from 330 to 395 ppm between 1975 and 2014
Which of the following statements about the water cycle is true?
a. Levels of precipitation decline with global warming
b. Water vapor amplifies the global warming caused by other greenhouse gases.
c. Water is only present naturally as a liquid on Earth
d. All of these - Answers - b. Water vapor amplifies the global warming caused by other
greenhouse gases.
