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The world's biomes

    • Reason why marine biomes are important. Talks about photosynthesis - on 2008-01-02
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  • The freshwater and marine
    biomes are probably the most important of all the biomes. Their medium, water,
    is a major natural resource. Water is the basis of life, it supports life, and
    countless species live in it for all or part of their lives. Freshwater biomes
    supply us with our drinking water and water for crop irrigation. The world's
    oceans have an even greater effect on global climate than forests do. Water has
    a high capacity for heat, and because the Earth is mostly covered with water,
    the temperature of the atmosphere is kept fairly constant and able to support
    life. In addition to this climate-buffering capacity, the oceans contain several
    billion photosynthetic plankton which account for most of the photosynthesis
    occuring on Earth. Without these, there might not be enough oxygen to support
    such a large world population and complex animal life.
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