A) Agriculture B) Transportation C) Industrial processes D) Deforestation
A) Nitrous oxide B) Carbon dioxide C) Chlorofluorocarbons D) Methane
A) By trapping heat in the atmosphere B) By causing the ozone layer to thicken C) By reflecting sunlight away from Earth D) By reducing the Earth's magnetic field
A) Chlorofluorocarbons B) Carbon dioxide C) Nitrogen oxide D) Methane
A) Burning of fossil fuels B) Reducing meat consumption C) Building wind turbines D) Recycling
A) The formation of clouds in the sky B) The process by which greenhouse gases trap heat in Earth's atmosphere C) The cooling effect caused by green rooftops D) The process of plants absorbing carbon dioxide
A) Agricultural practices B) Industrial processes C) Wetlands D) Burning fossil fuels
A) Higher levels of oxygen B) Cooling of the Earth's surface C) Increased ozone depletion D) Global warming
A) It creates a cooling effect in the upper atmosphere B) It absorbs excess heat from the atmosphere C) It amplifies the warming effect of other greenhouse gases D) It prevents the penetration of harmful UV rays
A) -18 °C (0 °F) B) 15 °C (59 °F) C) 5 °C (41 °F) D) 25 °C (77 °F)
A) 0.5±0.1 °C per year B) 0.1±0.05 °C per year C) 1.0±0.2 °C per decade D) 0.27±0.1 °C per decade
A) Ozone B) Methane C) Carbon dioxide D) Water vapor
A) 25% B) Over 50% C) 75% D) 100%
A) 5 years B) 50 years C) 100 years D) 12 years
A) In the last five years B) Over the last decade C) Since the Industrial Revolution D) During the past century
A) Ozone depletion B) Methane emissions C) Nitrous oxide emissions D) Carbon dioxide emissions
A) 53.6±5.2 Gt CO2e B) 40.5±4.5 Gt CO2e C) 70.0±7.0 Gt CO2e D) 30.0±3.0 Gt CO2e
A) Reach exactly 2.0 °C (3.6 °F) by 2050 B) Surpass 2.0 °C (3.6 °F) between 2040 and 2070 C) Stay below 1.5 °C (2.7 °F) D) Decrease to pre-industrial levels
A) 'Desirable for economic growth' B) 'Safe and sustainable' C) 'Negligible impact' D) 'Dangerous'
A) Argon B) Carbon dioxide C) Nitrous oxide D) Methane
A) 50 ppm. B) 30 ppm. C) 120 ppm. D) 90 ppm.
A) Global Temperature Records Database. B) Oceanic Carbon Dioxide Archive. C) Atmospheric Chemistry Observational Databases. D) Solar Radiation Data Center.
A) 80% B) The first 10% C) 50% D) 100%
A) Tens of minutes. B) A few years. C) Decades. D) Centuries to millennia.
A) Orbiting Carbon Observatory B) Infrared analyzing C) Manometry D) DIAL
A) 1750 B) 1990 C) 2000 D) 1980
A) Manometry B) Range-resolved infrared differential absorption lidar (DIAL) C) Infrared analyzing D) Orbiting Carbon Observatory
A) NOAA B) IPCC C) UNFCCC D) NASA
A) 1750 B) 1850 C) 1900 D) 1800
A) Decomposition B) Respiration C) Photosynthesis D) Combustion
A) 22% B) 44% C) 33% D) 11%
A) Synthetic halocarbons B) Methane C) Carbon dioxide D) Nitrous oxide
A) Rice paddies B) Wheat fields C) Corn farms D) Soybean plantations
A) Guy Stewart Callendar B) John Tyndall C) Svante Arrhenius D) Nils Gustaf Ekholm
A) Carbon dioxide air capture B) Biochar C) Atmospheric methane removal D) Geologic storage
A) Titan B) Mars C) Earth D) Venus |