The type of weather forecast that looks at long-term averages is the
A) persistence forecast.
B) climatological forecast.
C) numerical weather forecast.
D) analog approach.
Answer: B
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Interglacial–glacial period climate cycles are often referred to as appearing saw-toothed, with an abrupt change followed by a more gradual change. When do we see an abrupt change: when going from interglacial to glacial times or when going from glacial to interglacial times? When do we see a gradual change?
Examine Figure 18.2. The Vostok ice core is 3310 m (10,860 ft) long. The full record extends back to 422,000 years before the present. The figure shows CO2 in parts per million (ppm) and temperature anomalies in Celsius degrees. What will be an ideal response?
Which of the following is an example of chemical weathering?
a. The removal of soil along the banks of a river by the flowing of water b. The sculpting of rocks by sand carried by the wind c. A sidewalk crack getting larger when water in the crack freezes d. An iron fence rusting over time
Minerals that do not contain silicon are classified as
A. silicates. B. clays. C. mafic. D. nonsilicates.
What is the major factor determining whether a particular Slavic language uses the Latin alphabet or the Cyrillic alphabet in its written form?
A) the latitude of the country in which the language is spoken B) the dominant religion of the people who speak that language C) time period over which the language evolved D) the political system of the country E) the economic system of the country