If you did ever consider the total amount of water on the planet? As per research, water covers roughly 75 percent of the earth's surface. Oceans, lakes, rivers, and streams contain water, which is stored below as groundwater. Some of it is encased in ice. Water vapor is another form of water that may be found in the atmosphere. The term hydrosphere refers to all of the water on the planet. To put it another way, the hydrosphere is the Earth's water element. We may describe the hydrosphere as -
The hydrosphere can be defined as the combined mass of water found on the surface, under the surface, and even above the surface of the earth. It has been estimated that there is an average of roughly 1400 million cubic kilometers of water on earth. This also includes water in the liquid state and frozen state in oceans, rivers, lakes, streams, groundwater, and so on. The water sources mentioned above cover approximately 75 percent of Earth’s surface, an area of a rough estimate of 360 million square kilometers is covered by ocean. Water sources are on the earth's surface, underwater, and in the atmosphere. The hydrosphere of a planet might be fluid, vapor, or frozen.
The hydrosphere is constantly moving. Water sources have visible motion, while the velocity of water in ponds and lakes is less visible. Some sea and ocean motion may be seen readily with wide-scale movements that carry water over long distances, such as between countries or among poles and equators. Currents that transport warm water from the equator to the poles and cool water from the poles to the tropics are examples of these types of movements. These currents can be found both on the sea surface and at its depths.
The hydrological cycle is a phenomenon of the movement of water bodies such that it can transfer water from one reservoir or a form of state to another. Reservoirs include atmospheric moisture including humidity, rain, and its associated clouds, streams, oceans, rivers, lakes, groundwater, subterranean aquifers, polar ice caps, snow, saturated soil, and so on.
We rarely consider the planet's significance in our survival and take the hydrologic cycle for granted often. Water nourishes diverse living forms and plays a crucial role in habitats and atmospheric regulation, making the hydrosphere extremely important. The hydrosphere encompasses all water on the planet's surface. It includes groundwater including water at lower levels of the atmosphere, as well as saltwater, freshwater, and frozen water. The importance of hydrosphere is capitulated below -