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Why there would be no people without plants?

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The relationship between people and plants is very important. Plants play an important role in every aspect of our lives and we can't imagine life without them. They are the primary producers that sustain all other life forms. This is so because plants are the only organisms that can make their own food. Animals, incapable of making their own food, depend directly or indirectly on plants for their supply of food. All animals and the foods they eat can be traced back to plants.
They not only regulate the gas concentration in atmosphere but also are the major living organism, which help in transforming sunlight into food energy on which ultimate life depends. These are responsible for making lot of biochemicals which are essential for living organisms.
They also acts as foundation of ...

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