A) Transportation B) Deforestation C) Agriculture D) Industrial processes
A) Nitrous oxide B) Carbon dioxide C) Chlorofluorocarbons D) Methane
A) By reducing the Earth's magnetic field B) By reflecting sunlight away from Earth C) By trapping heat in the atmosphere D) By causing the ozone layer to thicken
A) Methane B) Chlorofluorocarbons C) Nitrogen oxide D) Carbon dioxide
A) Building wind turbines B) Recycling C) Reducing meat consumption 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) Burning fossil fuels B) Wetlands C) Agricultural practices D) Industrial processes
A) Increased ozone depletion B) Global warming C) Cooling of the Earth's surface D) Higher levels of oxygen
A) It prevents the penetration of harmful UV rays B) It absorbs excess heat from the atmosphere C) It creates a cooling effect in the upper atmosphere D) It amplifies the warming effect of other greenhouse gases
A) 5 °C (41 °F) B) -18 °C (0 °F) C) 15 °C (59 °F) D) 25 °C (77 °F)
A) 0.1±0.05 °C per year B) 0.5±0.1 °C per year C) 1.0±0.2 °C per decade D) 0.27±0.1 °C per decade
A) Carbon dioxide B) Ozone C) Water vapor D) Methane
A) 75% B) 100% C) Over 50% D) 25%
A) 12 years B) 100 years C) 50 years D) 5 years
A) Venus B) Earth C) Titan D) Mars
A) Geologic storage B) Atmospheric methane removal C) Biochar 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) 1980 B) 2000 C) 1750 D) 1990
A) Infrared analyzing B) Orbiting Carbon Observatory C) Manometry D) DIAL
A) 1900 B) 1850 C) 1750 D) 1800
A) NASA B) IPCC C) UNFCCC D) NOAA
A) A few years. B) Centuries to millennia. C) Tens of minutes. D) Decades.
A) Combustion B) Decomposition 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) Infrared analyzing B) Manometry C) Orbiting Carbon Observatory D) Range-resolved infrared differential absorption lidar (DIAL)
A) Oceanic Carbon Dioxide Archive. B) Solar Radiation Data Center. C) Atmospheric Chemistry Observational Databases. D) Global Temperature Records Database.
A) 70.0±7.0 Gt CO2e B) 30.0±3.0 Gt CO2e C) 53.6±5.2 Gt CO2e D) 40.5±4.5 Gt CO2e
A) Wheat fields B) Corn farms C) Soybean plantations D) Rice paddies
A) Nitrous oxide emissions B) Methane emissions C) Ozone depletion D) Carbon dioxide emissions
A) 120 ppm. B) 90 ppm. C) 50 ppm. D) 30 ppm.
A) Methane B) Carbon dioxide C) Nitrous oxide D) Argon
A) 'Desirable for economic growth' B) 'Safe and sustainable' C) 'Negligible impact' D) 'Dangerous'
A) 100% B) The first 10% C) 80% D) 50%
A) 33% B) 11% C) 44% D) 22% |