Cliffs form sheltered environments for a large number of plants and animals. An article on the ecology of cliffs included the diagram below which gives the daily insolation (calories per square centimeter per hour) on a cliff that faces south. Complete parts a and b. Insolation (calories per sq cm per hr) 120- 110- Winter 100- 90- 80- 70- 60- 50- 40- 30- Summer 20- 10- 0+ C a. Estimate the total calories per square centimet each day for the cliff in summer. Use rectangles with widths of 1 hr, starting with 8:15 A.M., and wit the last rectangle (ending at 3:45) with a width of 1 2 hr. Use the left endpoints, then the right endpoints, then give the average of those answers. Using the left endpoints yields a total of approximately cal/cm² each day. (Round to the nearest integer as needed.) 6 7 8 9 10 11 12 13 14 15 16 17 18 Local Solar Hour

Cliffs form sheltered environments for a large number of plants and animals. An article on the ecology of cliffs included the diagram below which gives the daily insolation (calories per square centimeter per hour) on a cliff that faces south. Complete parts a and b. Insolation (calories per sq cm per hr) 120- 110- Winter 100- 90- 80- 70- 60- 50- 40- 30- Summer 20- 10- 0+ C a. Estimate the total calories per square centimet each day for the cliff in summer. Use rectangles with widths of 1 hr, starting with 8:15 A.M., and wit the last rectangle (ending at 3:45) with a width of 1 2 hr. Use the left endpoints, then the right endpoints, then give the average of those answers. Using the left endpoints yields a total of approximately cal/cm² each day. (Round to the nearest integer as needed.) 6 7 8 9 10 11 12 13 14 15 16 17 18 Local Solar Hour