Georgia Science Grade 6

Chapter 17: Climate

CRCT Practice

1
The National Weather Service created the Apparent Temperature Index to show the temperature the human body feels when heat and humidity are combined. If the relative humidity is 85% and the temperature is 75°F, what is the apparent temperature?
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A)78°F
B)79°F
C)88°F
D)89°F
2
What is the most likely reason that the air temperature is warmest at the tropical latitudes?
A)These latitudes receive the most solar radiation because there are no clouds.
B)These latitudes receive the most solar radiation because the Sun's angle is high.
C)These latitudes receive the least solar radiation because the Sun's angle is low.
D)These latitudes receive the least solar radiation because of heavy cloud cover.
3
The city of Redmond, Oregon, is near the Cascade Mountain Range. The average annual rainfall for the Redmond, OR, area is a mere 8 inches.Where is Redmond, OR, located?
A)windward side of mountains
B)top of the mountain range
C)leeward side of mountains
D)on the coast
4
Which is NOT one of the three most important greenhouse gases?
A)nitrous oxide
B)water vapor
C)carbon dioxide
D)methane
5
Which best describes El Niño?
A)an increase in ocean temperatures in the eastern Pacific caused by a weaken ing of trade winds
B)a climate condition resulting in increased global precipitation
C)a large storm that produces lots of rain
D)a long-term climate trend
6
Which of these statements is true according to the graph?
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A)Earth's mean temperature has never been higher than it is today.
B)The level of CO2 has never been higher than today.
C)The mean global temperature 60,000 years ago was lower than today.
D)The level of CO2 in the atmosphere 80,000 years ago was 280 parts per million.
7
Which statement best describes this graph?
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A)As CO2 levels have increased, so has global temperature.
B)As CO2 levels have increased, global temperature has decreased.
C)As global temperature has increased, CO2 levels have decreased.
D)No relationship exists between CO2 and global temperatures.
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