Homework Answers
c. Burning fossil fuels increases atmospheric carbon dioxide
Burning of fossil fuels like coal and oil will result in increasing the level of atmospheric carbon dioxide. Thee carbon in fossil fuels will combine with oxygen to give rise to carbon dioxide.
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Choose one: Which of the following is true of carbon cycling? Choose one: A. Growing forests...
Question 10 1 pts Rank the following carbon reservoirs based on their size with one being...
Question 10 1 pts Rank the following carbon reservoirs based on their size with one being the largest. Ocean water [Choose] Plant biomass [Choose) Marine biomass [Choose Atmosphere [Choose! Rocks and fossil fuels [Choose] Soils [Choose]
1. When a plant photosynthesizes, the carbon used by the plant to construct organic molecules comes...
1. When a plant photosynthesizes, the carbon used by the plant to construct organic molecules comes from a. CO2 in the atmosphere b. CO2 in the soil c. Organic carbon in the soil d. Single carbon atoms in the atmosphere e. Any of these sources 2. CO2 in the atmosphere (choose all that apply) I. Has increased in the last 100 years due to burning of fossil fuels II. Has increased in the last 100 years due to deforestation III....
Which of the following statements about human-made CO2 is NOT true? Group of answer choices: A.Oceans...
Which of the following statements about human-made CO2 is NOT true? Group of answer choices: A.Oceans and photosynthesis do not take up all human-made CO2. B. The amount of CO2 produced by human activities is low. C. Burning coal and oil adds CO2 to the atmosphere. D. Burning fossil fuels adds CO2 to the atmosphere.
Despite large concentrations of CO 2 released by human activity, atmospheric CO 2 is not as...
Despite large concentrations of CO 2 released by human activity, atmospheric CO 2 is not as high as some would expect. Studies suggest the reason for this is A addition of new carbon sinks, such as large scale agricultural fields. B increased evapotranspiration activity by phytoplankton. C uptake of CO2 by oceans is offsetting atmospheric increases. D a so-called lag in atmospheric increases in CO2 caused by global circulation. E international treaties designed to combat atmospheric CO2 releases. General Circulation...
Carbon is introduced into the atmosphere by all but which of the following means? a. respiration...
Carbon is introduced into the atmosphere by all but which of the following means? a. respiration b. volcanic eruptions c. burning of fossil fuels d. wind erosion e.All of them are correct
1.Which of the following would act as a negative feedback loop? Select one: a. Increased evaporation...
1.Which of the following would act as a negative feedback loop? Select one: a. Increased evaporation of water, which results in more clouds. b. Higher temperatures, which increase release of dissolved carbon dioxide from the oceans. c. Increased absorption of carbon dioxide by the oceans, which results in ocean acidification. d. Melting of polar ice, which alters ocean circulation patterns. 2.The sawtooth pattern of increasing and decreasing carbon dioxide concentrations observed by Charles Keeling at Mauna Loa Observatory was a...
Which process fixes carbon (i.e., captures carbon and incorporates it into a living thing)? A. fire...
Which process fixes carbon (i.e., captures carbon and incorporates it into a living thing)? A. fire B. Respiration C. carnivory D. photosynthesis Plants manufacture a wide variety of carbohydrates, oils, and proteins, all of which contain carbon atoms. Where do plants get the carbon atoms? A. from water B. from soil C. from the atmosphere D. from sunlight “Fossil fuels” developed from A. Carbon-rich deposits of limestone that went through complex chemical changes. B. Pools of sand, gravel, and ground...
28. Which of these statements about greenhouse gases and the greenhouse effect is not correct? I....
28. Which of these statements about greenhouse gases and the greenhouse effect is not correct? I. Greenhouse gases prevent infrared radiation from escaping through the atmosphere. II. To absorb infrared radiation, a molecule must have a vibration that produces a change in the dipole moment of the molecule. III. Argon is the third most abundant species in the atmosphere (after nitrogen and oxygen), and therefore is a significant greenhouse gas. IV. The average amount of carbon dioxide in the atmosphere...
which of the following is an example of a molecule? A. carbon dioxide CO2 B. water...
which of the following is an example of a molecule? A. carbon dioxide CO2 B. water H2O C. oxygen in the atmosphere O2 D. sodium chloride: table salt NaCl E. all of these
Which one of the following statements about the carbon, phosphorus, and nitrogen cycles is true? The...
Which one of the following statements about the carbon, phosphorus, and nitrogen cycles is true? The major source of carbon used by plants is the carbonate rocks and soil. The major source of nitrogen used by plants in photosynthesis is the atmosphere. Phosphorus has no atmospheric component. Soil bacteria drive the phosphorus cycle.
Question 10 1 pts Rank the following carbon reservoirs based on their size with one being the largest. Ocean water [Choose] Plant biomass [Choose) Marine biomass [Choose Atmosphere [Choose! Rocks and fossil fuels [Choose] Soils [Choose]
28. Which of these statements about greenhouse gases and the greenhouse effect is not correct? I. Greenhouse gases prevent infrared radiation from escaping through the atmosphere. II. To absorb infrared radiation, a molecule must have a vibration that produces a change in the dipole moment of the molecule. III. Argon is the third most abundant species in the atmosphere (after nitrogen and oxygen), and therefore is a significant greenhouse gas. IV. The average amount of carbon dioxide in the atmosphere...
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