Science Home Product Information Site Map Search Contact Us   Glencoe Online
Quizzes Quiz

Practice Test
  1.How have humans altered the composition of Earth's atmosphere?  
  a.   They have polluted it with excess ozone.  
  b.   They have polluted it with carbon dioxide gas.  
  c.   They have made the atmospheric pressure drop.  
  d.   They have made the atmospheric temperature drop.  
  2.What two forms of heat transfer help create a sea breeze?  
  a.   radiation and conduction  
  b.   radiation and recycling  
  c.   convection and radiation  
  d.   convection and conduction  
  3.Conduction is the transfer of heat through __________.  
  a.   thoughts  
  b.   radiation  
  c.   empty space  
  d.   touch  
  4.What is it called when water changes from gas to liquid?  
  a.   evaporation  
  b.   condensation  
  c.   freezing  
  d.   melting  
  5.What preceded the growth and survival of green plants on Earth?  
  a.   the formation of an ozone layer  
  b.   the formation of the solar system  
  c.   the formation of severe weather  
  d.   human life  
  6.What would happen if Earth had no atmosphere?  
  a.   Earth would not have nights.  
  b.   The days would be hot and the nights would be cold.  
  c.   The days would be cold and the nights would be hot.  
  d.   Earth would not have days.  
  7.Which layer of the atmosphere contains the ozone layer?  
  a.   stratosphere  
  b.   troposphere  
  c.   thermosphere  
  d.   exosphere  
  8.Where can CFCs be found?  
  a.   aerosol sprays  
  b.   refrigerators  
  c.   air conditioners  
  d.   all answers are correct  
  9.What is the most abundant gas in Earth's atmosphere?  
  a.   oxygen  
  b.   nitrogen  
  c.   carbon  
  d.   hydrogen  
  10.Force exerted on an area is called __________.  
  a.   temperature  
  b.   pressure  
  c.   gravity  
  d.   mass  
  11.What form of energy transfer heats Earth?  
  a.   conduction  
  b.   radiation  
  c.   recycling  
  d.   convention  
  12.Within which layer of the atmosphere do you find rain, snow, and clouds?  
  a.   thermosphere  
  b.   troposphere  
  c.   mesosphere  
  d.   stratosphere  
  13.The hydrosphere, which consists of all of Earth's water, is maintained __________.  
  a.   by recycling water in the atmosphere  
  b.   by addition of water to the atmosphere  
  c.   by removing water from the atmosphere  
  d.   by the clouds in the atmosphere  
  14.Why are the thermosphere and exosphere the warmest of the atmospheric layers?  
  a.   because they are closest to the Sun  
  b.   because the underlying mesosphere keeps the warm air there  
  c.   because the air pressure is too great  
  d.   because of the gases trapped in these layers  
  15.What causes a shooting star?  
  a.   a meteor in the troposphere  
  b.   a comet in the stratosphere  
  c.   a comet in the thermosphere  
  d.   a meteor in the mesosphere  
  16.Heat flows from __________.  
  a.   same temperature to same temperature  
  b.   low to high temperature  
  c.   medium to high temperature  
  d.   high to low temperature  
  17.How is the troposphere warmed?  
  a.   The gases in the troposphere absorb heat from the Sun.  
  b.   The stratosphere warms it.  
  c.   The troposphere absorbs sunlight directly.  
  d.   The Sun warms Earth's surface, which warms the air above it.  
  18.What have CFCs done to Earth and its atmosphere?  
  a.   all answers are correct  
  b.   They have caused the number of cancer cases to rise.  
  c.   They have created a hole in the ozone layer.  
  d.   They have caused more ultraviolet radiation to reach Earth.  
  19.Which layer of the atmosphere is named after its high temperature?  
  a.   stratosphere  
  b.   mesosphere  
  c.   troposphere  
  d.   thermosphere  
  20.Why are there fewer molecules of air up in the mountains?  
  a.   because air pressure increases as you go higher  
  b.   because air is too heavy  
  c.   because air pressure is the same throughout all layers of the atmosphere  
  d.   because air pressure decreases as you go higher  

McGraw-Hill / Glencoe
The McGraw-Hill Companies