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State whether True or False. The main ...

State whether True or False.
The main constituent of human blood is water.

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JNAN PUBLICATION-ROLE OF SUBSTANCES IN ENVIRONMENT-EXAMPLE
  1. State whether True or False. Some salt enters our body through the w...

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  2. State whether True or False. Pure sodium chlroide absorbs water from...

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  3. State whether True or False. The main constituent of human blood is ...

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  4. State whether True or False. Milk, curd, bones of small fishes are t...

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  5. State whether True or False. Cactus Acacia, Palm grow in hot and dry...

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  6. State whether True or False. Iodine helps in maturation of brain.

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  7. State whether True or False. Many small molecules join together to f...

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  8. SCIch the column A with column B.

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  9. What are the main constituents of common salt?

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  10. What is the symbol of Sodium Chloride?

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  11. What are the two functions of Calcium?

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  12. What are four elements prevalent in human, bacterial, fungal, plant an...

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  13. How the harmful compounds of our body are excreted?

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  14. What are the different components of paints?

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  15. What is the reason for wide use of cement?

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  16. What will happen of you prepare ball of cement, sand and water and kee...

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  17. Write the name of three non-metallic element.

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  18. What is protein?

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  19. Where protein is found in our body?

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  20. What speed up numerous chemical reactions that occur in our body?

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