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Our planet is full of plants. These living things are essential for life.

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Plants and algae produce oxygen, a gas we need to live.

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How do they produce it? The answer is through photosynthesis.

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Through photosynthesis, plants make their own food to grow and live.

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To perform photosynthesis, plants need mineral salts and water from the soil, carbon dioxide from the air, and light and energy from the sun.

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As a result, plants produce oxygen, which is released into the atmosphere.