SciOly: Question Preview (ID: 11271)

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What percentage of the Earth's Atmosphere is Nitrogen?
a) 28% Nitrogen
b) 78% Nitrogen
c) 71% Nitrogen
d) 21% Nitrogen

Weather is defined as
a) movement of air in the exosphere
b) the hydrologic cycle
c) short term phenomena created by conditions in the atmosphere
d) Long term predictable patterns of temperature

The earth's atmosphere has what percentage of oxygen?
a) 78%
b) 1%
c) 11%
d) 21%

The exosphere
a) is where most weather takes place
b) has a few hydrogen and helium molecules that escape into space
c) contains the ozone layer
d) is very cold

Dust storms
a) Occur over the ocean
b) occurs in the mesosphere and the dust settles within 1 mile of where it blows
c) are caused by strong winds and the dust can be carried all over the world
d) occur in the troposphere and the dust can travel within a five mile radius

The worst industry, as far as atmosphere pollution is concerned is
a) coal-fired plants
b) nuclear plants
c) micro chip fabrication plants
d) wildfires

Ground level ozone is
a) important for life on earth. It protects us from the sun's radiation
b) created by automobiles and is a component of smog
c) made up of helium and argon
d) good- the ozone in the stratosphere is very dangerous/

Which of these statements is false.
a) The troposphere is the thinnest layer of the atmosphere
b) Trace gases in the atmosphere include Carbon Dioxide, Argon, Helium, Neon, Methane, Krypton and Hydr
c) Water vapor, smoke and dust can be found in the atmosphere.
d) The ozone layer is located in the stratosphere

The tropopause is
a) The place that contains charged particles that produce aurorasd
b) The place that most meteors burn up as they enter the Earth's atmosphere
c) The buffer zone between the troposphere and stratosphere
d) The buffer zone between the troposphere and the earth's surface

Which of these statements is false
a) The mesosphere is the coldest layer of the atmosphere and can reach -90 degrees
b) Temperatures decrease with altitude the higher you go in the stratosphere
c) The thermosphere can reach up to 1500 DEGREES CELSIUS
d) The bottom layer of the troposphere is warmer than the upper layer because of Earth's energy balance

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