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30
M: +1.00/-0.25

Which of the following statements are CORRECT for contour map? 
1) Parallel contour shows uniform slope. 
2) Very closed contour shows steep slope. 
3) Very closed contour shows flat area. 
4) Two contours at different elevation c ut at right angle.

[SSC JE Civil 2017-18 (25 Jan Tech 1)]
A
B
C
D