Describe the characteristics of Northern Hemisphere jet streams
What will be an ideal response?
The polar jet stream meanders between 30° and 70° N at the tropopause along the polar front. The subtropical jet stream meanders near the tropopause at latitudes between 20° and 50° N. Sometimes, both the polar jet stream and subtropical jet stream can occur over North America simultaneously. The two may actually merge for brief episodes.
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Planet Earth is actually a
A. huge magnet. B. ball of cosmic rays. C. magnetic organism. D. none of the above
Among the following organizations devoted to fostering trade, the one with the largest number of member states is:
A. ASEAN. B. EU. C. NAFTA. D. APEC.
Evaluate whether human or natural systems pose the greatest threat to the Great Barrier Reef
What will be an ideal response?
An increase in earthquake moment magnitude by one whole number (for example, from 6 to 7) on the Richter scale means that the energy released has increased by a factor of about ____
a. 3 b. 32 c. 330 d. 3,000 e. 31,000