Identify and describe the four Earth systems
What will be an ideal response?
Answer: Earth's four systems are the atmosphere, the hydrosphere, the lithosphere and the biosphere. The names of these four spheres are derived from the Greek words for stone (litho), air (atmo), water (hydro), and life (bio).
Three of the four systems are abiotic. These are:
1. The atmosphere which is a thin layer of gases surrounding Earth.
2. The hydrosphere includes all of the water on and near Earth's surface.
3. The lithosphere is made up of the Earth's crust and a portion of upper mantle directly below the crust.
One of the four systems is biotic. This is the biosphere, or all living organisms on Earth, including plants and animals, as well as microorganisms.
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