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What is the hydrosphere?

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auror | Student, Grade 10 | eNotes Newbie

Posted December 31, 2009 at 2:25 AM via web

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What is the hydrosphere?

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pohnpei397 | College Teacher | (Level 3) Distinguished Educator

Posted December 31, 2009 at 2:36 AM (Answer #1)

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It is not clear to me what you are asking, because it looks like you already have some information about what the hydrosphere is.

I am guessing that maybe you have this information but you don't really know what it means.  So I'll briefly explain.  If this isn't what you want, please let me know.

The hydrosphere is simply all the water on the Earth.  This is different from the atmosphere (all of the air around the Earth) and the lithosphere (the part of the Earth that is rock and dirt and such).

So, the hydrosphere includes the oceans and all the freshwater such as lakes and rivers.

Again, please let me know if this is not what you are asking.

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versatilekamini | College Teacher | (Level 1) Valedictorian

Posted December 31, 2009 at 9:17 PM (Answer #2)

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The hydrosphere refers to the layer of water on the surface of the earth in the form of oceans, lakes, rivers and other water bodies. Water covers 71% of the total surface of the earth, and therefore, earth is sometimes called a "water planet".

Continents may be considered as large islands rising from the vast oceans. Presence of large quantities of water in the form of oceans is responsible for moderating the temperature conditions. 

In nature water occurs on the land, below its surface, in atmosphere and in the biomass. Of the total volume of water available, 97% is in the vast oceans, 2% stored in the form of ice-sheets and less than 1% is available as fresh water.

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ladyvols1 | High School Teacher | (Level 3) Senior Educator

Posted December 31, 2009 at 3:01 AM (Answer #3)

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The “Water Sphere” is also known as the hydrosphere. This biome includes all the water found on the earth’s surface and it includes: air, groundwater, soil, lakes, streams, and oceans. The hydrosphere works in a communal relationship with the other spheres like the atmosphere, and cryosphere. The biosphere works as a go between for the hydrosphere and all the other spheres. This is how we have a successful water cycle. We use the cryosphere, which is all of the frozen water on earth such as the Antarctic shelves to determine climate changes.

“The biosphere serves as an interface between the spheres enabling water to move between the hydrosphere, lithosphere and atmosphere as is accomplished by plant transpiration. The hydrologic cycle traces the movement of water and energy between these various stores and spheres.”

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giorgiana1976 | College Teacher | (Level 3) Valedictorian

Posted December 31, 2009 at 5:56 PM (Answer #4)

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The origin of terrestrial water is a controversial issue. It is stated that water existed in the early formation of Earth, but not in liquid form or as vapor in the atmosphere, but tied to rocks.

Gradually, water was released in the form of steam by the hot rocks, together with carbon dioxide, forming a second atmosphere. When  crust cooling has widened,water has condensed , rain has appeared and formed seas, and water intake from depths,continued through emanations of volcanoes.

Thus,it was formed as a shell of the earth, consisting of oceans, seas, lakes, glaciers, rivers, groundwater, snow and ice, called the hydrosphere.

Earth is the only place known where the water is clear and liquid, the result of convergence of several natural and climatic factors.

All of these components of the hydrosphere, are the water source available on the planet Earth, regarded as national entities, by virtue of their sovereign rights over a territory, legally recognized.

To understand the content and significance of water resources, this natural biological resource, must be considered in the indissoluble link with water resources.

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tebedu | Student, Undergraduate | eNotes Newbie

Posted January 1, 2010 at 4:29 AM (Answer #5)

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hydrosphere is a water  body partof earth.for eg oceans,seas ,lakes etc...  

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krishna-agrawala | College Teacher | (Level 3) Valedictorian

Posted January 1, 2010 at 1:47 PM (Answer #6)

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Hydrosphere refers to the total surface area of the earth covered by water and ice. the rest of the earth's surface area, which id the land area is called lithosphere.

Hydrosphere consists of about 70 percent of total surface area of the earth and includes all the area covered by oceans and seas, lakes and rivers.

Like atmosphere, hydrosphere includes the complete depth of the water column, which is as much as 9.7 kilometers deep in some parts of the pacific ocean. The average depth of hydrosphere is about 3.8 kilometers deep.

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Michelle Ossa | College Teacher | (Level 3) Educator Emeritus

Posted December 31, 2009 at 5:09 AM (Answer #7)

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I think the question is going by way of comparing the so-called "four spheres of the Earth". If you saw the planet through each of its four most important components you would see the "sphere" completely made of that component.

For the water component, there would be the hydrosphere

Lithosphere- The rock that covers the planet

Biosphere- All living things

Atmosphere- The gases we breathe.

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