Computer · Surveying

Consider the following statements about the characteristics of contours: 1. Closed contour lines with higher values inside show a lake. 2. Contour is an imaginary line joining points of equal elevations. 3. Closely spaced contour lines indicate a steep slope. 4. Contour lines of equal height may not converge nor continue as one line, but a single contour line may split into two lines. Which of the statements given above are correct?