Why are floods in urban particulary dangerous

Which of the following describes what rocks usually are composed of ,

Wich of the following is not likely to appear on a map

(10 points) 1. cone 2. rectangle 3. triangle 4. circle 5. cylinder a. perpendicular cross section of a pyramid b. perpendicular cross section of a cylinder c. parallel cross section of a sphere d. shape created when a rectangle is rotated about the y-axis e. shape created when a right triangle is rotated about the y-axis