-- card: 39002 from stack: in
-- bmap block id: 0
-- flags: 4000
-- background id: 4601
-- name: #124
----- HyperTalk script -----
on openCard
  global group,rightone
  put 11 into group
  put "D" into rightone
  pass openCard
end openCard



-- part contents for background part 20
----- text -----
Question #11

-- part contents for background part 1
----- text -----
T3C06  What  causes tropospheric ducting of radio waves?

-- part contents for background part 11
----- text -----
A very low pressure area

-- part contents for background part 27
----- text -----
An aurora to the north

-- part contents for background part 28
----- text -----
Lightning between the transmitting and receiving stations

-- part contents for background part 29
----- text -----
A temperature inversion

-- part contents for background part 43
----- text -----
Correct answer is D