Global dimming - Quiz
A) Atmospheric particulate matter B) Increased solar activity C) Changes in Earth's orbit D) Decreased cloud cover
A) 1950s B) 1940s C) 1980s D) 1990s
A) Carbon dioxide B) Water vapor C) Sulfate aerosols D) Methane gas
A) 1–2% B) 20–25% C) 4–5% D) 10–12%
A) It had no effect on warming B) It eliminated warming C) It masked the extent of warming D) It accelerated warming
A) It expanded significantly B) It disappeared C) It shifted northwards D) It shifted southwards
A) 1970s monsoon flood B) 1990s Sahara drought C) 1984 Ethiopian famine D) 1980s Amazon fire
A) Atmospheric clearing B) Solar intensification C) Surface radiance D) Global brightening
A) 0.5 °C B) 2.0 °C C) 1.5 °C D) 0.1 °C
A) Reduce air pollution B) Repair the ozone layer C) Counteract global warming D) Increase precipitation
A) To balance solar activity B) Because aerosols disperse quickly C) To maintain global rainfall D) To prevent a rapid return of warming
A) It lowers evaporation B) It increases evaporation C) It stabilizes precipitation D) It eliminates condensation
A) It remained stable B) It decreased C) It fluctuated randomly D) It increased
A) Solar activity is decreasing B) Industrialization has completely ceased C) Natural filters are removing aerosols D) Nations are acting to improve public health
A) The type of chemical used B) Its effects on weather systems C) The cost of implementation D) The altitude of release
A) Higher temperatures than at the surface. B) Visible smog layers. C) Less sunlight was filtering through. D) More ultraviolet radiation.
A) A researcher from the Los Angeles Institute. B) Atsumu Ohmura. C) A group of climatologists in Estonia. D) The Swiss Federal Weather Agency.
A) 4–5% per decade. B) 6–7% per decade. C) 2–3% per decade. D) 0.1–0.3% per decade.
A) Visible light and infrared radiation. B) Only radio waves. C) All parts of the spectrum equally. D) Only ultraviolet radiation.
A) Cloud cover actually increased. B) Cloud cover has no effect on infrared radiation. C) Dimming occurred even when skies were clear. D) Cloud cover completely blocks all light.
A) 1990s. B) 1970s. C) 1980s. D) 1960s.
A) Only in the United States. B) Estonia, Germany, Israel, and the former Soviet Union. C) Across South America and Africa. D) Only in Swiss research journals.
A) They decrease the number of droplets B) They increase the size of droplets C) They evaporate water droplets D) They act as nuclei for water droplets
A) They make clouds less reflective B) They make clouds transparent C) They make clouds more reflective D) They have no effect on reflectivity
A) They have no impact on rainfall B) They decrease rainfall C) They cause flash flooding D) They increase rainfall
A) Vehicle exhaust emissions B) Agricultural waste burning C) Industrial coal burning D) Dimethyl sulfide from oceanic plankton
A) Mount Pinatubo B) Mount St. Helens C) Mount Vesuvius D) Krakatoa
A) 80 million tons B) 40 million tons C) 3 million tons D) 10 million tons
A) 40 million tons B) 15 million tons C) 80 million tons D) 3 million tons
A) Soot B) Sulfates C) Smog D) Dust
A) Chemical precipitation B) Incomplete combustion C) Complete combustion D) Nuclear fusion
A) Diesel combustion B) Coal use C) Oceanic plankton D) Volcanoes
A) Diesel combustion B) Agricultural burning C) Coal use D) Forest fires
A) 500,000 B) 7 million C) 10 million D) 1 million
A) Denver B) London C) Tokyo D) New York
A) 50 times B) 190 times C) 10 times D) 500 times |
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