Answer:
How do you find the contour interval on a map?
Explanation:
near Denver might have index contours of 5,000', 5,100' and so on with a contour interval of 20 feet. This means that there would be five "spaces," and four non-index contour lines, between each index contour. Often, index points are given along with index contours.
Answer: c is the answer
Explanation: They have certain requirements in order to form. They can’t just form out of nothing.