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Coal is burnt to generate electricity uranium produces nuclear power A hydrosphere is the total amount of water on a planet. The hydrosphere includes water that is on the surface of the planet, underground, and in the air. A planet's hydrosphere can be liquid, vapor, or ice. On Earth, liquid water exists on the surface in the form of oceans, lakes and rivers The lithosphere is the solid outer section of Earth, which includes Earth's crust The lithosphere extends from the surface of Earth to a depth of about (70–100 km). The biosphere is the zone of life on Earth, The atmosphere is a layer of gases surrounding a planet