Contours of a 3D surface: maxima and minima
Read the contour labels to find the hill and the pits, then see it in 3D.
Answer: A and C. Four minima (a, b, c, d) and only one maximum (e). Labels increase inward → maximum; decrease inward → minimum.
Read the contour labels to find the hill and the pits, then see it in 3D.