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