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Fill in the blanks : helps in maturat...

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__________ helps in maturation of brain, so it is essential for children.

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JNAN PUBLICATION-ROLE OF SUBSTANCES IN ENVIRONMENT-EXAMPLE
  1. Fill in the blanks : One important constituent of our blood is .

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  2. Fill in the blanks : To meet the demand of salt in reserve forests t...

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  3. Fill in the blanks : helps in maturation of brain, so it is essenti...

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  4. Fill in the blanks : Generally iodine deficiency problems are more i...

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  5. Fill in the blanks : The fibres in the plant body are made of differ...

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  6. Fill in the blanks : The muscles, tendons, ligaments etc of animal b...

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  7. Fill in the blanks : is the sodium or potassium salt of some organi...

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  8. Fill in the blanks : is used for writing or printing is mixture of ...

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  9. Fill in the blanks : is a mixture of oxides and Silicate compounds ...

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  10. Fill in the blanks : Some of the widely consmed soft drinks in our c...

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  11. State whether True or False. Carbonic acid is present in vinigar.

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  12. State whether True or False. Apple contains malic acid.

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  13. State whether True or False. Lactic acid is present in curd.

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  14. State whether True or False. Our body contains acid in the stomach.

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  15. State whether True or False. Alkali turns moict red litmus white.

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  16. State whether True or False. The taste of blood is sour.

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  17. State whether True or False. Water does not change the colour of lit...

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  18. State whether True or False. If our kidneys get affected due to some...

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  19. State whether True or False. Common salt is a white, crystalline mix...

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  20. State whether True or False. Some salt enters our body through the w...

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