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    You South Africa

    Oceans full of plants

    Apr 01, 2021 4 minutes
    EDITED BY
    SANDRA VISSER

    PLANTS are essential for life on Earth. They provide humans and animals with food, shelter and medicine. The basic food for all organisms comes from plants and the process by which they convert the sun’s energy into nutrients is called photosynthesis, which uses chlorophyll – the pigment that makes plants green. Plants also use carbon dioxide for photosynthesis and release oxygen as a by-product. Without oxygen, animals and humans couldn’t breathe. For their part, most plants need sunlight, air, water, nutrients and space to survive.

    All life on Earth is concentrated in the biosphere. This a relatively thin layer around the planet’s surface that supports all living things. The

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