Question

What is a contour interval?

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A. The degree of a slope's steepness
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B. A loop formed by contour lines that indicates a peak or depression
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C. An imaginary line that joins points of equal elevation
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D. The elevation difference between two adjacent contour lines

Answer 1

Answer: D. The elevation difference between two adjacent contour lines

Step-by-step explanation:

Answer 2

the answer is D because each line on a topographic map is telling you a different elevation according to the map's contour interval scale