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Climate Quiz

The average temperature on the Earth is about
1 degree warmer than it was 100 years ago.
3 degrees warmer than it was 100 years ago.
1 degree cooler than it was 100 years ago.
3 degree cooler than it was 100 years ago.
the same as it was 100 years ago.

According to the American Institute of Physics, compared to the 1800's, the concentration of carbon dioxide in the air today has
decreased 6%
increased 6%
increased 33%
doubled
stayed the same

During the Cretaceous period, when Tyranasaurus Rex roamed the Earth, the average temperature on the Earth was
8oC lower than today.
4oC lower than today.
about the same as today.
4oC higher than today.
8oC higher than today.

Which one of the following is not generally regarded as a "greenhouse gas"?
carbon dioxide
nitrous oxide
ozone
argon
methane

If the polar ice caps were to melt what would happen to sea level?
It would fall by about 30 feet.
It would rise by about 10 feet.
It would rise by about 40 feet
It would rise by about 200 feet.
It would not change.

Which one of the following in not typically blamed for global warming?
Deforestation
Growing rice
Burning fossil fuels
Acid rain
Raising cattle

Antarctica has the same amount of precipitation as a
desert
savanah
scrub woodland
typical temperate forest
rain forest

During the most recent North American glacial period ("Ice Age", ending approx. 10,000 years ago), ice sheets extended about as far south as present-day
Edmonton, Alberta (53 1/2o latitude)
U.S./Canadian border (49oC latitude).
Minneapolis (45o latitude)
Kansas City, Kansas (39o latitude)
Dallas, Texas (33o latitude)

Milankovitch cycles, which have a large impact on climate, are produced by which three phenomena?
Eccentricity, axial tilt and precession
Magnetic field reversals, precession and eccentricity
Solar influx, precession and magnetic field reversals
Eccentricity, lunar periodicity, and precession
Solar influx, lunar periodicity and axial tilt

Volcanic eruption large enough to have a significant effect on the Earth's climate occur
once every 10,000 years
once in a millenium
once in a century
several times per century
every two or three years