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Atmosphere Answer Key 1 March 14, 2016

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Page 1: Atmosphere Answer Key - Manhasset Union Free School · PDF file · 2016-03-14Atmosphere Answer Key 2 March 14, 2016 Envelope of gases surrounding Earth 78% Nitrogen 21% Oxygen 1%

Atmosphere Answer Key

1

March 14, 2016

Page 2: Atmosphere Answer Key - Manhasset Union Free School · PDF file · 2016-03-14Atmosphere Answer Key 2 March 14, 2016 Envelope of gases surrounding Earth 78% Nitrogen 21% Oxygen 1%

Atmosphere Answer Key

2

March 14, 2016

Envelope of gases surrounding Earth

78% Nitrogen21% Oxygen1% other (CO2, H2O(g), CH4, etc)

weather, clouds, birds, mountains

air pressure decreases as altitude increases

Troposphere­ closest to surface, weather and clouds, thickest layer, temp dec. Stratosphere­ ozone layer traps UV rays, temp inc., jets Mesosphere­ temp dec., where meteors burn up before hitting Earth 

thermosphere­ first exposed to sun, temp. very variable, air very thin, auroras, ionosphere, space shuttle orbits

exosphere­merges into space

increase in CO2, traps more radiation, increases global temperature

No!  Greenhouse effect makes Earth a livable planet.  TOO MUCH greenhouse effect is the problem