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A) They absorb and emit infrared radiation. B) They have a symmetrical electric charge distribution. C) They are composed of only one type of atom. D) They reflect all solar radiation.
A) 78% B) 0.9% C) 0.04% D) 21%
A) They reflect infrared light instantly. B) They are too heavy for radiation to affect. C) They are monatomic gases. D) They lack asymmetry in their electrical charge distribution.
A) It absorbs all thermal radiation. B) It is completely transparent. C) It emits only visible light. D) It reflects all thermal radiation.
A) Their total lack of electrical charge. B) Their extremely high molecular density. C) Asymmetry in electric charge distribution. D) Their monatomic structure.
A) 0.04% B) 0.9% C) 78% D) 21%
A) Thermal equilibrium index. B) Atmospheric pressure density. C) Radiative forcing. D) Greenhouse gas saturation.
A) Degrees Celsius per year. B) Watts per square meter. C) Grams per square centimeter. D) Joules per cubic meter.
A) Additional warming occurs. B) Additional cooling occurs. C) The atmospheric concentration of nitrogen increases. D) The Earth reflects more sunlight.
A) Increased methane concentrations. B) Decreased cloud cover. C) Increased carbon dioxide concentrations. D) Sulfates forming in the atmosphere.
A) They accelerate the upward transfer of heat. B) They cause the lower atmosphere to shrink. C) They increase the transparency of the air to radiation. D) They limit radiative heat flow away from the surface.
A) The sun provides less energy to the upper layers. B) The upper atmosphere is absorbing too much solar radiation. C) Nitrogen levels are increasing in the upper atmosphere. D) Heat re-emitted by gases escapes to space more easily.
A) The upper atmosphere is becoming more dense. B) The upper atmosphere is becoming more reflective. C) The upper atmosphere is expanding. D) The upper atmosphere is shrinking.
A) It is monatomic. B) It is made of two atoms of different elements. C) It has an asymmetric charge. D) It is a greenhouse gas.
A) The balance between incoming and outgoing energy. B) The total volume of nitrogen in the atmosphere. C) The number of monatomic gases present. D) The rate of solar rotation.
A) 15 °C B) -18 °C C) 2 °C D) 0 °C
A) 0 °C B) 25 °C C) -18 °C D) 15 °C
A) Water vapor B) Nitrous oxide C) Methane D) Carbon dioxide
A) About half B) About 90 percent C) About 10 percent D) About three-quarters
A) Over 50% B) 10% C) 150% D) 25%
A) 200% B) 75% C) 50% D) 150%
A) Burning of fossil fuels B) Agriculture C) Waste production D) Deforestation
A) Thousands of years B) 12 years C) 100 years D) 6 months
A) 15.2 Gt B) 100.5 Gt C) 25.8 Gt D) 53.6 Gt
A) Nitrogen B) Oxygen C) Argon D) SF6
A) Three-quarters B) One-half C) One-tenth D) All of it
A) Carbon dioxide B) Tropospheric ozone C) Methane D) Nitrous oxide
A) One year B) 56 days C) 200 years D) Nine days
A) Clausius–Clapeyron relation B) Atmospheric chemistry C) IPCC-recommended expressions D) Radiative forcing models
A) 67% B) 3% C) 0.01% D) 41%
A) 84 times B) 56 times C) 37 times D) 420 times
A) 37 ppm B) 90 ppm C) 30 ppm D) 420 ppm
A) CFCs B) Carbon dioxide C) Mineral dust D) Nitrous oxide
A) Radiative transfer B) Enhanced greenhouse effect C) Water vapor feedback D) Industrial atmospheric forcing
A) Atmospheric lifetime B) Airborne fraction C) Emission threshold D) Source variability
A) Carbon dioxide B) Water vapor C) Nitrous oxide D) Methane
A) 80% B) 10% C) 30% D) 50%
A) 10% B) 50% C) 80% D) 30%
A) 2000 B) 1850 C) 1750 D) 1990
A) Undefined B) Very low C) Moderate D) Very high
A) Radiometry B) Tachometry C) Spectroscopy D) Manometry
A) Volcanic activity B) Photosynthesis C) Industrial filtration D) Solar radiation
A) Hydrochloric acid B) Nitric acid C) Sulfuric acid D) Carbonic acid
A) Methane B) Carbon dioxide C) Synthetic halocarbons D) Nitrous oxide
A) 5% B) 33% C) 22% D) 11%
A) 5% B) 40% C) 11% D) 22%
A) The last decade B) The industrial era C) The 21st century D) Pre-industrial Holocene
A) Photosynthesis B) Ocean acidification C) Rainfall D) Cement manufacturing
A) Turns into oxygen B) Forms carbonic acid C) Solidifies into ice D) Evaporates immediately
A) Cloud droplets B) Geologic formations C) Deep oceans D) Soil
A) Nitrogen B) Oxygen C) Methane D) Argon
A) CO2 B) N2 C) Water vapor D) Poly-atomic gaseous molecules
A) Svante Arrhenius B) Nils Gustaf Ekholm C) Charles Keeling D) John Tyndall
A) Jupiter B) Venus C) Titan D) Mars |