Gen Sci Ch 35 Question Preview (ID: 45930)


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Earth's atmosphere is made up of
a) gases
b) aerosols
c) dust
d) all of the above

The percentage of the atmosphere that is nitrogen and oxygen adds up to
a) 25%
b) 17%
c) 1%
d) 99%

When colder air displaces a warm air mass, it is called a(n)
a) warm front
b) cold front
c) stationary front
d) occluded front

The atmospheric layer in which weather occurs is the
a) troposphere
b) stratosphere
c) mesosphere
d) thermosphere

The atmospheric layer that is the warmest is the
a) troposphere
b) stratosphere
c) mesosphere
d) thermosphere

A region of the upper mesosphere and lower thermosphere in which auroras form is called
a) ionosphere
b) aurorasphere
c) electrosphere
d) asthenosphere

What causes the seasons?
a) the shape of Earth's orbit
b) the tilt of Earth's orbit
c) the strange shape of Earth
d) the moon

Half of the solar energy that reaches Earth is
a) absorbed by clouds
b) reflected by clouds
c) absorbed by Earth's surface
d) reflected by Earth's surface

Which is true about the summer solstice?
a) it's the shortest day of the year
b) it's the first day of winter
c) It's usually around Dec. 21
d) none of the above

Wind chill is the
a) actual temperature outside
b) wind direction plus humidity
c) temperature plus wind speed
d) speed of the wind

Winds are named
a) according to the direction they're going
b) according to the direction they're coming from
c) according to their temperature
d) according to their speed

Because of the Coriolis effect,
a) winds turn
b) winds blow straight
c) weather occurs
d) meatballs fall from the sky

Which air will hold the most water molecules?
a) 90 degree air
b) 40 degree air
c) 17 degree air
d) 60 degree air

Air masses are classified
a) according to the latitude over which they form
b) by whether they form over land or water
c) both a and b
d) none of the above

When colder air displaces a warm air mass, it is called a(n)
a) warm front
b) cold front
c) stationary front
d) occluded front

These clouds are low, flat, and smooth
a) stratus
b) cirrus
c) cumulus
d)

Air flowing horizontally from an area of high pressure to one of lower pressure
a) solar intensity
b) front
c) air mass
d) wind

A wind-driven, shallow ocean current
a) Coriolis effect
b) surface current
c) terrestrial radiation
d) climate

The general pattern of weather that occurs over a period of time
a) weather
b) climate
c) humidity
d) precipitation

What happens to atmospheric pressure the farther you go down in the atmosphere?
a) it increases
b) it decreases
c) it stays the same
d) it depends on the season

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