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100
troposphere
Which atmosphere layer contains most of the mass of Earth's atmosphere?
100
Ceilometer
What instrument is used to measure the heights of the bases of clouds?
100
Hurricane
During what stage of a tropical cyclone does an eyewall develop?
100
Neptune and Uranus
What two planets have similar appearances, atmospheric compositions, interiors, and particle belts?
100
Retrograde motion
What is a planet's backward motion in the sky called?
200
15%
What percentage of incoming solar radiation does Earth's atmosphere absorb?
200
Coriolis effect
Which term describes changes in air motion resulting from Earth's rotation?
200
Microclimate
A heat island is an example of what type of climate?
200
Summer
If it's winter in the northern hemisphere, what season is it in the southern hemisphere?
200
Carbon Dioxide
Which greenhouse gas is most associated with global warming?
300
Analog
What forecast method is best for researching past weather events?
300
A warm ocean current
What is EI Nino?
300
Visible light
What type of radiation does not have to be observed above the Earth's atmosphere?
300
In the core
Where does nuclear fusion in the sun occur?
400
Low
What type of cloud is a stratus cloud?
400
Wind speed
What does an anemometer measure?
400
A heliocentric model
What model of our solar system did Copernicus propose?
400
Visible light
What type of radiation does not have to be observed above Earth's atmosphere?
400
A period of low sunspot activity
What is the Maunder minimum?
500
Prevailing westerlies
What winds blow between 30 degrees and 60 degrees north and south latitude?
500
Stable air
Which of the following would work against the development of the thunderstorm?
500
Longshore bars
Which features of the seafloor are cut by turbidity currents?
500
Submarine canyons
Which features of the seafloor are cut by turbidity currents?
500
The steady-state universe theory
What theory proposes that the universe does not change with time?