-- card: 47131 from stack: in
-- bmap block id: 0
-- flags: 4000
-- background id: 7720
-- name: #150
----- HyperTalk script -----
on openCard
  global group,rightone
  put 14 into group
  put "D" into rightone
  pass openCard
end openCard



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Question #14

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4BC-5.1 What is the name for a type of propagation in which radio signals travel along the 
"terminator", which separates daylight from darkness?

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Transequatorial propagation

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Sporadic-E propagation

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Long-path propagation

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Gray-line propagation

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Correct answer is D