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