Biology - Our Environment

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1. The endosperm of angiosperms is (NTSE Rajasthan, Stage-I, 2013-14)

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2. Which layer of planet earth's atmosphere protects it from the harmful UV radiations of the sun? (NTSE Delhi,Stage-I,2012-13)

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3. Which one is more permanent ecosystem? (NTSE West Bengal, Stage-I, 2013-14)

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4. A large ecosystem with its associated plants and animals is called (NTSE Mizoram, Stage-I, 2012-13)

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5. The average temperture of the earth remains fairly steady as compared to that of the moon because of the (NTSE Stage-II,2012-13)

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