Answer the Q's below and replace each letter in these coordinates with the corresponding correct number:
50 5A.BCD -114 0E.FGH
The Bermuda Triangle (BT) refers to an area of the Atlantic Ocean between Miami, Bermuda and Puerto Rico where dozens of ships and airplanes have disappeared under unexplained circumstances. It is known to be an area with an inordinately high number of disappearances, but in truth, this area is statistically insignificant- at least in modern day. Countless trips are made through this region every day without event, via both air and sea.
There are a number of explanations offered for the mystery of this area, including:
Compass Problems
A) A compass will "change" as you travel across the BT- how mysterious! However, this phenomenon occurs all over the globe due to a variation between true north (the point of polar rotation) and magnetic north (where compasses point). This variation is called
- 5 - The coriolis effect
- 6 - Deviation
- 7 - Declination
- 8 - Magentic drift
B) In fact, there are maps that show lines much like contour lines that visually display where this variation has a constant value. These lines are called
- 2 - Deviation lines
- 1 - Declination lines
- 0 - Isogonic lines
- 9 - Agonic lines
C) Which statement is not true about this deviation:
- 2 - It changes by a few degrees every 100 years in any given location
- 1 - Close to the pole, it changes by 1° every 3 years
- 0 - It is greatest in the Bermuda Triangle
- 9 - If you travel in a straight line, it could increase, then decrease despite no change in heading
D) Magnetic deviation is not caused by
- 6 - Boats
- 7 - Aircraft
- 8 - Power lines
- 9 - Thick forests
Human Error
E) A factor that can contribute to navigational error is
- 4 - Intoxication
- 3 - Distraction
- 2 - Stubbornness
- 1 - All of the above
Methane Hydrates
F) Large quantities of methane gas is trapped as ice on the ocean floor. Where does the methane come from?
- 9 - Gases released from the earth's core
- 0 - Excretions from bacteria feeding on decaying organic matter
- 1 - Particles of pollution that settle on the ocean and sink to the floor
- 2 - Sea cucumber flatulance
G) If a large enough pocket of compressed ice methane is released, the volatile hydrocarbon could sink a ship due to
- 9 - A decrease in the density of water
- 8 - A huge swell in ocean waves
- 7 - An explosion upon contact with oxygen at the surface
- 6 - Impact with the hull
The Gulf Stream
H) Part of global ocean circulation, this "river within an ocean" travels at a rate of approx:
- 9 - 7km/h
- 8 - 7 M/s
- 7 - 20 Km/h
- 6 - 20 M/s
C o o r d i n a t e C h e c k