1) Name the atmospheric layer closest to the ground a) Troposphere b) Mesosphere c) Thermosphere d) Stratosphere 2) The most abundant gas on the earth’s atmosphere is a) Oxygen b) Carbon c) Nitrogen d) Hydrogen 3) What atmospheric layer has most of the clouds? a) Mesosphere b) Thermosphere c) Exosphere d) Troposphere 4) The study of weather is called? a) meteorology b) climatology c) aeronomy d) aerology 5) Which one of the following is NOT a primary layer of the atmosphere? a) Mesosphere b) Troposphere c) Exosphere d) Stratosphere 6) Name the atmospheric layer that is completely cloudless and free of water vapor. a) Exosphere b) Troposphere c) Thermosphere d) Stratosphere 7) The ozone layer or ozone shield is a region of Earth’s atmosphere that absorbs most of the Sun’s ultraviolet (UV) radiation. Which layer of the atmosphere contains ozone layer? a) Troposphere b) Mesosphere c) Thermosphere d) Stratosphere 8) What does an anemologist study? a) Animals b) Names c) Wind d) Atoms 9) The Encantadas, or Enchanted Isles” is a novella by American author Herman Melville which consists of ten philosophical “Sketches” on the islands. Which one of the following is referred to as Enchanded Isles? a) Andaman Islands, India b) Galapagos islands c) Coronado Island d) Greenland 10) Sick Building Syndrome (SBS) describes which phenomenon? a) Indoor air pollution b) Indoor water pollution c) Indoor noise pollution d) All the above 11) Which is the longest mountain range in the world? a) Karakoram b) Rockies c) Himalayas d) Andes 12) Around the North Pole of Earth, tiny electrically charged particles high in the atmosphere react with rays from the sun to create beautiful sheets of light. Theser are called a) Aurora Borealis b) Aurora Australis c) Aurora Solaris d) None of the above 13) Which of the following materials can be recovered from the recycling of soft drink cans? a) Paper b) Plastic c) Metal d) Glass 14) The region of the atmosphere above 400 km and higher is known as a) Exosphere b) Mesosphere c) Thermosphere d) Atmosphere 15) The natural process of the atmosphere heating through the trapping of re-radiated infrared radiation is known as a) The green house effect b) Thermal inversion c) Solar heating d) Global warming

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