List at least 7 features formed by moving water

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

Which of the following describes a situation where competition between producers exists