You are at the Tropic of Capricorn. You are sailing to the Arctic Circle. How many degrees latitude will you need to sail?
A) 43 degrees
B) 90 degrees
C) 66.5 degrees
D) 180 degrees
E) 23.5 degrees
B) 90 degrees
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If a fusion reaction produces no appreciable radioactive isotopes, why does a hydrogen bomb produce significant radioactive fallout?
A) The fallout is only the radioactive remnants of the bomb's structure and casing. B) It is a misconception that fusion reactions produce no appreciable radioactive isotopes. Therefore, radioactive fallout is unavoidable. C) The radioactive fallout is a result of the fission reaction used to ignite the thermonuclear fusion reaction. D) Once a hydrogen bomb is exploded, all matter within nearly 100 miles becomes radioactive fallout.
Negative feedback processes tend to function within an ecosystem to ________
A) cause ecological relationships to flourish B) reinforce harmful changes C) cause further ecological destruction D) stabilize it
Which wind belt is located at letter D?
A. Southeast Trade Winds B. Westerlies C. Polar Easterlies D. Northeast Trade Winds
When the center of circulation of a midlatitude cyclone just passes to your south, you expect ________
A) winds shifting from the south or southeast to the west or northwest with abrupt cooling at the passage of a cold front B) warming conditions during light to moderate rain with a falling barometer followed by a northwest wind and rising barometer C) a constantly rising barometer until the cyclone passes then falling barometer D) winds shifting from the east or northeast to northwest during rainy (or snowy) weather