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What are the four biogeochemical cycles?

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Quick Answer

The four biogeochemical cycles include the water cycle, the carbon cycle, the phosphorous cycle and the nitrogen cycle. These four cycles involve biology, chemistry and geology and describe the flow of nutrients and waste products on Earth.

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What are the four biogeochemical cycles?
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Full Answer

The water, or hydrologic, cycle, primarily involves the evaporation of moisture from the ocean and its return to lakes, oceans, waterways and groundwater sources in the form of rain. The carbon and phosphorous cycles primarily involve the flow of nutrients and biological wastes to and from plant, animal and microbiological life. The nitrogen cycle is more complex, as nitrogen is fixated by lightning, ultraviolet radiation and bacteria in some processes and returned to Earth's atmosphere in other processes.

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Related Questions

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    What is the water cycle?

    A:

    The water cycle, also known as the hydrologic cycle, describes the process of how water moves through Earth's environment. In general, water evaporates from oceans, then it condenses in the atmosphere as water vapor cools. When enough water gathers in clouds, it precipitates back to the Earth's surface as rain, hail, snow or sleet.

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  • Q:

    Why can Earth maintain bodies of water?

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    Bodies of water on Earth are maintained by the atmosphere keeping the water cycle of evaporation, condensation and precipitation functioning so that water can be replenished. Also, the gravitational pull of the Earth keeps water from leaving the planet.

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    What are the water cycle steps, in order?

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    In order, the steps of the water cycle are evaporation, condensation, sublimation, precipitation, transpiration, runoff and infiltration. Together, all of the steps help regulate the Earth’s water supply and climate.

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    What is the driving force behind the water cycle?

    A:

    The solar radiation that heats the Earth's crust is the driving force behind the water cycle. The water cycle is sometimes referred to as the hydrologic cycle and is a process through which Earth's water continuously moves between the surface of the planet and the atmosphere.

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