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Matter in Our Surroundings — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceMatter in Our Surroundings2 Marks
Question
Diffusion of gases in water is essential. Explain the term with suitable example.
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Answer

The gases from the atmosphere diffuse and dissolve in water. Gases like oxygen and carbon dioxide diffuse in water, are essential for the survival of aquatic animals and plants. Animals breathe in this oxygen dissolved in water for their survival and plants can use carbon dioxide dissolved in water for photosynthesis.

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