What did the Polynesians use to navigate between the islands in the Pacific Ocean?
A) ?the compass invented by the Chinese
B) ?detailed maps with latitude and longitude lines
C) ?maritime records obtained from the Library of Alexandria
D) ?subtle directional clues based off of wind and wave patterns, the sun, moon, and stars, and marine organisms
D
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Closely spaced gridpoints gives finer ____________________, allowing smaller-scale phenomena to be predicted
Fill in the blank(s) with correct word
Which of the following is not a renewable energy source?
A) wind B) solar C) heat from the sun D) water E) oil
When are upper air winds fastest?
A) in winter B) in summer C) anytime surface temperature gradients are weak D) These winds maintain about the same speed throughout the year.
The prevailing westerlies occur in which of the following regions?
A) Equatorial (0 to 5 degrees) B) 5 to 30 degrees C) 30 degrees D) 30 to 60 degrees E) 60 degrees F) 60 to 90 degrees G) Poles (90 degrees)