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2 answers

Usually feet and meters. Check then out, if the ratio of the measurements is about 1:3.1, this is so.

2007-03-13 13:01:02 · answer #1 · answered by cattbarf 7 · 0 1

I agree with feet/meters..but maybe they mean:
1. contour intervals (or contour lines)
2. colors that correspond to the legend

2007-03-13 13:11:11 · answer #2 · answered by Jennifer B 3 · 0 0

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