Earth's Atmosphere Answers

The __________ is the layer of the atmosphere where satellites and the space shuttle orbit the Earth. a. troposphere c. mesosphere b. stratosphere d. exosphere Please select the best answer from the choices provided

The ____ contains the highest concentration of ozone.a.tropospherec.stratosphereb.mesosphered.exosphere

Some scientists hypothesize that Earth's ozone layer is being damaged by ____.a.ultraviolet radiationc.plant life on Earthb.chlorofluorocarbonsd.global warming

Chlorofluorocarbons may be harming the ozone layer by ____.a.adding more ozone moleculesc.destroying ozone moleculesb.blocking ultraviolet radiationd.adding carbon dioxide molecules

In general, atmospheric pressure is greatest near Earth's surface and ____ as you move upward away from sea level.a.decreasesc.stays the sameb.increasesd.doubles

The ____ is the layer of the atmosphere nearest to Earth's surface.a.exospherec.stratosphereb.troposphered.ionosphere

Which of the following statements about the thermosphere is true?a.Temperatures are high but heat produced is low.c.Temperatures are high, as is the heat produced.b.Temperatures are low but heat produced is high.d.Temperatures are low, as is the heat produced.

Please select the word from the list that best fits the definition

Air pressure is greatest ____ because there are more molecules of air pushing down from above.a.at the top of the mountainc.in the troposphereb.at sea leveld.in the exosphere

Please select the word from the list that best fits the definition