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Where the ozone layer exists?

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How the temperature of atmosphere is maintained?

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Name the major constituents of troposphere.

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What is difference between atmosphere and environment?

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What do you mean by atmosphere?

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Describe the sources uses and deficiency symptoms of fat soluble vitamins.

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Give the importance of vitamins.

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Explain the sources and uses of lipids.

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Explain amino acids are building blocks of proteins?

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Explain the sources and uses of proteins.

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What are polysaccharides? Give their properties.

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Explain oligosaccharide

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What are carbohydrates? How monosaccharide’s at prepared? Give their characteristics.

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What is the function of double helix formation of DNA?

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What do you mean by genetic code of life?

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Justify water soluble vitamins are not injurious to health.

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Deficiency of vitamin D leads to which disease?

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Describe the sources and uses of vitamin A.

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What is the significance of vitamins?

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Give the types of vitamins.

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