1.

Which of the following statements is/are true?i. Contour lines cross valley line at 90°.ii. Contour lines cross ridge line at 90°.iii. Contour lines are widely spaced where ground has steep slope.

A. Both statements ii and iii are true
B. Only statement i is true
C. Both statements i and iii are true
D. Both statements i and ii are true
Answer» E.


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