EVERYDAY SCIENCE

Detailed explanation-1: -Oceans cover more than 70 percent of the Earth’s surface, making them the biggest part of the hydrosphere. The hydrosphere is simply the total of all the water in Earth’s atmosphere.

Detailed explanation-2: -“ The hydrosphere includes the oceans, rivers, lakes, groundwater, and water frozen in glaciers. 97% of water on Earth is found in the oceans. Water is one of the most important substances needed for life and makes up about 90% of living things.

Detailed explanation-3: -Ice, being frozen water, is part of the hydrosphere, but it is given its own name, the cryosphere.

Detailed explanation-4: -These five oceans are the Atlantic ocean, Pacific Ocean, Antarctic/Southern ocean, the Arctic ocean, and the Indian ocean. These five oceans together constitute approximately 71% of the world’s water bodies. They officially contribute to the majority of our hydrosphere.

Detailed explanation-5: -Everything in Earth’s system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called “spheres.” Specifically, they are the “lithosphere” (land), “hydrosphere” (water), “biosphere” (living things), and “atmosphere” (air).