Preserved rocks in North America are generally less than ________
A) 10 km thick
B) 3.5 billion years old
C) 2.7 g/cm3 in density
D) 20 km wide
E) 50 km long
B
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Crescent-shaped dunes formed where the amount of sand is outweighed by gravel and bedrock are
A) parabolic dunes. B) barchan dunes. C) transverse dunes. D) star dunes.
A small, moving disturbance imbedded in a longwave is called a?
a. ?lee-side low. b. ?wave cyclone. c. ?shortwave. d. ?frontal wave. e. ?Rossby wave.
In most developed countries, an epidemiologic transition
A) was followed by a fertility transition, resulting in a demographic transition. B) prevented a fertility transition, resulting in a demographic transition. C) resulted from increased deaths due to epidemics and social conditions. D) was followed by an increase in birth rates and an increase in death rates.
Which of the following is TRUE about Global Positioning System (GPS)?
A) GPS has no scientific uses, but are great for recreational purposes. B) GPS is the same as remote sensing. C) GPS helped accurately determined the height of Mt. Everest. D) GPS is used solely by the military, who share information with physical geographers.