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.
Animals can only do respiration; they cannot perform photosynthesis. Plants can perform photosynthesis, but cannot do...
Animals can only do respiration; they cannot perform photosynthesis. Plants can perform photosynthesis, but cannot do respiration. True False One way or another, nearly all the carbon in the bodies of plants and animals ends up back in the atmosphere as carbon dioxide. True False If humans did not start digging up and burning fossil fuels about 200 years ago, the total amount of atmospheric carbon would have remained roughly the same. True False When one burns a hydrocarbon like...
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
Which of the following statements are true about the phosphorus cycle? Select all that are true....
Which of the following statements are true about the phosphorus cycle? Select all that are true. -This cycle is significantly affected by the extraction of fossil fuels. -Transpiration is a major flux in this cycle. -The weathering of rock is a major flux in this cycle. -Nitrification is a major flux in this cycle. -This cycle's largest reservoir is ocean water. -Photosynthesis is a major flux in this cycle. -This cycle is affected by the release of detergents in treated...
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...
TRUE FALSE Air pollution is a new problem and was not heard of before the middle...
TRUE FALSE Air pollution is a new problem and was not heard of before the middle of the 19th century, when we started burning fossil fuels. When you run a race, you get warm. This is an illustration of which Law of Thermodynamics? First Second Third Fourth None of them Which of these is NOT true of human muscles? They require energy to contract They work by shortening Like most body processes, their source of energy is ATP They convert...
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]
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