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