name and define the four Domains of earth .
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The four domains of Earth are the atmosphere, biosphere, hydrosphere, and lithosphere.
1. Atmosphere: It is the layer of gases surrounding the planet, primarily composed of nitrogen (78%), oxygen (21%), and tracesof other gases. The atmosphere plays a vital role in regulating the Earth's temperature, protecting it from harmful solar radiation, and providing the necessary gases for life.
2. Biosphere: This domain includes all living organisms on Earth and their interactions with each other and the environment. It encompasses all ecosystems, from the smallest microorganisms to large ecosystems like forests and oceans. The biosphere is responsible for sustaining life by cycling nutrients, producing oxygen, and providing habitats for organisms.
3. Hydrosphere: The hydrosphere consists of all the water on Earth, including oceans, rivers, lakes, groundwater, and even water vapor in the atmosphere. Water is essential for life, and the hydrosphere plays a crucial role in global climate patterns, regulating temperature, and providing habitats for aquatic organisms. It is through the water cycle that water moves between the different parts of the hydrosphere and other domains.
4. Lithosphere: The lithosphere refers to the solid outermost layer of the Earth, which includes the Earth's crust and part of the uppermost mantle. It is composed of various rock types and minerals and forms the continents, ocean basins, mountains, and other landforms. The lithosphere is constantly changing due to tectonic plate movements, volcanic activity, erosion, and weathering. It provides a physical foundation for the other domains and plays a role in shaping the Earth's surface features.
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The four Earth domains are:
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1. Lithosphere:
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2. Hydrosphere:
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3. Atmosphere:
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4. Biosphere:
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These four domains interact and are interconnected, playing a crucial role in shaping the Earth's environment and supporting life on our planet.
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