A.180E above the equator B.64.5 E over the IOR C.15.5W along the straight line D.55.5W above the equator
A.complicated circumstances B.changeable atmospheric pressure C.large density of traffic D.some strong signals from unwanted satellites
A.besides the polar regions B.including the North Pole and the South Pole C.above 70N and below 70S D.as far north and south 70