Oceans Quiz 2023 with complete solutions questions and answers

5 oceans Pacific, Atlantic, Indian, Artic and the Southern oceans. How much of the earth is made up of water 71% Which of the five oceans is the largest The Pacific is the greatest ocean of all What is the difference between a sea and an ocean? A sea is an enclosed body of water and an ocean is an open body of water continental shelf a gently sloping shallow area which runs along the border of the continent continental slop begins at the end of the continental shelf and is a steady decline down to the ocean floor. continental rise a gentle slope between the continental slope and the abyssal plain abyssal plain a smooth, nearly flat sea floors covered with sediments mid-ocean ridges mountain ranges under water. They are formed at divergent plate boundaries. ocean trenches a steep-sided canyon. It is formed when one sinks beneath another. They are some of the deepest spots on earth. atom the smallest part an element. All matter is made up of atoms element made up of more than one of the same atom. 02 = oxygen molecules Two or more atoms combined together. Molecules can be made of the same type of atom or more than on type of atom. compound a combination of different elements mixture made up of compounds/elements that are not chemically combined therefore can be separated back to their original state. solution a mixture where the compounds/elements that are evenly mixed and therefore appear to look the same. some can be separated. density is the mixture of how much mass an object has for its size. salinity the measure of salts dissolved in the ocean water. buoyancy the ability of an object to float when submerged in water. 71% how much of the earth is covered in oceans