Ice core data from Greenland reveal that rapid shifts in climate (from ice age conditions to a much warmer state) took place in as little as ____ over central Greenland around the end of the Younger Dryas
a. a century
b. a decade
c. a year
d. a thousand years
e. four thousand years
ANSWER: b
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In the Middle Ages, between the 5th and 16th centuries, geographic knowledge was preserved and expanded by
A) Greek and Latin scholars. B) Middle Eastern and Chinese scholars. C) Scandinavian scholars. D) French and German scholars. E) English scholars.
The actual age of the volcanic rock on Midway is about 27.7 million years. Suggest a reason why your answer for problem 3 differs noticeably from this.
Approximately ________ million years ago, the Earth began to have an oxygen rich atmosphere.
A. 359 B. 444 C. 250 D. 2500
The Big Island of Hawaii is an example of a volcanic island associated with volcanic activity at a ________
A) hotspot B) island arc C) mid-ocean ridge D) transform fault E) deep sea trench