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Greenhouse Gas Inventory


Quiz Questions

1. Naturally occurring greenhouse gases include water vapor, carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and ozone (O3).
True
False
2. Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) are halocarbons that contain chlorine, while halocarbons that contain bromine are referred to as bromofluorocarbons (i.e., halons).
True
False
3. The relationship between gigagrams (Gg) of a gas and Tg CO2 Eq. can be expressed as follows: Tg CO2 Eq. = (Gg of gas) x (GWP) x (Tg / 1,000 Gg)
True
False
4. Figure 3.2 represents the growth in US greenhouse gas emissions by gas.
True
False
5. The global carbon cycle is made up of large carbon flows and reservoirs. Billions of tons of carbon in the form of CO2 are absorbed by oceans and living biomass (i.e., sinks) and are emitted to the atmosphere annually through natural processes.
True
False
6. Nitrous oxide is produced by biological processes that occur in soil and water and by a variety of anthropogenic activities in the agricultural, energy-related, industrial, and waste management fields. While total N2O emissions are much lower than CO2 emissions, N2Ois approximately 300 times more powerful than CO2 at trapping heat in the atmosphere.
True
False
7. Table 3-9 presents greenhouse gas emissions from economic sectors with emissions related to electricity generation distributed into end-use categories.
True
False
8. The Solvent and Other Product Use sector contains greenhouse gas emissions that are produced as a by-product of various solvent and other product uses.
True
False
9. ____________ provides data on various statistics related to U.S. greenhouse gas emissions normalized to 1990 as a baseline year. U.S. greenhouse gas emissions have grown at an average annual rate of 1.1 percent since 1990.
Table 3-10
Table 3-11
10. The Waste sector contains emissions from waste management activities. Landfills were the largest source of anthropogenic CH4 emissions, accounting for 25 percent of total U.S. CH4 emissions.
True
False
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