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Understanding Earth's Four Spheres: Biosphere, Hydrosphere, Atmosphere, and Geosphere

Earth is divided into four main spheres: the Biosphere, where all life exists; the Hydrosphere, which encompasses all water, ice, and water vapor; the Atmosphere, being the protective air surrounding the Earth; and the Geosphere, which includes Earth's surface features and everything beneath it. Each sphere interacts with the others, impacting our environment in numerous ways—volcanic eruptions, human activities, and natural phenomena all play roles in shaping our world. Understanding these interactions is crucial for preserving our planet.

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Understanding Earth's Four Spheres: Biosphere, Hydrosphere, Atmosphere, and Geosphere

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  1. Earth’s 4 Divisions • Biosphere is where all life exists on Earth. • Hydrosphere includes all Earth’s water, ice, and water vapor. • Atmosphere is the air blanketing the Earth’s solid and liquid surface • Geosphere includes the features of the Earth’s surface and everything below the surface.

  2. Geosphere The Earth Sphere • Layers of Earth • The continents and ocean basins • Rocks • Mountains • Lava • Beaches

  3. Hydrosphere The Water Sphere • Oceans • Rivers • Lakes • Streams • Groundwater • Glaciers • Ice Caps • Clouds

  4. Biosphere The Life Sphere • Bacteria • Algae • Animals • Plants

  5. Atmosphere The Vapor Sphere The gaseous envelope surrounding Earth • Air • Nitrogen • Oxygen • Carbon Dioxide • Ozone • Water Vapor

  6. Interactions Among Spheres Atmosphere Geosphere Biosphere Hydrosphere

  7. Volcanic eruption Hot weather causes evaporation Humans pollute the air Dust storm Tornado destroys trees Earthquake kills people Humans mine for minerals Water erodes mountains Humans drink water Evaporation increases humidity of air Lava superheats water and produces steam Humans pollute water

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