what are the four major spheres of the earth ? give a description of each in 2 sentences
Answers
Lithosphere
Biosphere
Hydrosphere
Atmosphere
Explanation:
Lithosphere- Land crust
Biosphere- Life
Hydrosphere- Layer of water
Atmosphere- Layer of air
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Explanation: Earth is made up of four distinct yet connect spheres. In this video lesson, you will learn about where each sphere is found on Earth, as well as some features commonly found in each.
Earth Is Divided Yet Connected
Earth is a very complex place. Although it looks like one large structure, it's actually got a lot going on that you may not see if you don't look closely. All of the processes on Earth are driven by four 'spheres,' which we describe individually, but are really all connected.
The names of each of these spheres come from Greek words that describe what they're made of: 'Geo' for 'ground,' 'hydro' for 'water,' 'bio' for 'life' and 'atmo' for 'air.' Let's look at each of the four spheres in a bit more detail to gain a better understanding of how they help make up the earth.
The Geosphere
Since 'geo' means 'ground,' the geosphere describes all of the rocks, minerals and ground that are found on and in Earth. This includes all of the mountains on the surface, as well as all of the liquid rock in the mantle below us and the minerals and metals of the outer and inner cores. The continents, the ocean floor, all of the rocks on the surface, and all of the sand in the deserts are all considered part of the geosphere. Basically, if it looks like solid ground, it's part of the 'ground' sphere.