Explain why there is a need of variety of animals and plants in a forest?
Updated 1/12/2026
Why is heart known as the pumping organ of the human body?
Updated 1/12/2026
Why walls of veins are thinner than the walls of arteries?
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Apart from rainbow, where else we can see seven colours of sunlight?
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State similarity between aerobic and anaerobic respiration?
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