Multiple Choice
Isolines have all the properties EXCEPT the following:
A) They are always closed loops (the loops sometimes) closing off the map.
B) They may cross each other.
C) The numerical difference between isolines are intervals.
D) Close isolines indicate a steep gradient.
E) They were first used on a map about 300 years ago.
Correct Answer:

Verified
Correct Answer:
Verified
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