Lesson Objectives. 1  List the main features of the seafloor: mid-ocean ridges, deep sea trenches, and abyssal plains. 2  Describe what seafloor magnetism tells scientists about the seafloor. 3  Describe the process of seafloor spreading.
Assignment Help. The average diameter of sand dollars on a certain island is 4.50 centimeters with a standard deviation of 1.00 centimeters. If 9 sand dollars are chosen at random for a collection, find the probability that the average diameter of those sand dollars is more than 4.13 centimeters.he average diameter of sand dollars on a certain island is 4.50 centimeters with a standard deviation of 1.00 centimeters.
ID-000 specifies a size of 25 mm Ã 15 mm, with one corner slightly (3mm) bevelled. The ID-000 size was first defined by ENV 1375-1, Identification card systems â Intersector integrated circuit(s) card additional formats â Part 1: ID-000 card size and physical characteristics.