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Answer the following questions What is m...

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What is meant by surface activity?Name three chemicals responsible for the surface activity of various detergents

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NAVNEET PUBLICATION-IN THE WORLD OF STARS-QUESTION BANK
  1. Under which different types can the following changes be classified Oc...

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  2. Write the names of the following Constituents of cement

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  3. Write the names of the following Cell organelles

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  4. Write the names of the following Digestive enzymes

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  5. Write the names of the following Non -metals

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  6. Write the names of the following Sources of Noise pollution

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  7. Distinguish between the following pairs Animals cell and plant cell

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  8. Distinguish between the following pairs Mixtures and Compounds

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  9. Distinguish between the following pairs Umbra and Penumbra

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  10. Answer the following questions Write the names of elements from the fo...

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  11. Answer the following questions What is meant by surface activity?Name ...

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  12. Answer the following questions What do we get from forests

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  13. Answer the following question: What is meant by dye?

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  14. Answer the following questions What does the intensity of sound depend...

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  15. Give Scientific reasons: The sounds generated by a tabla and sitar ar...

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  16. Give scientific reasons : We should not observe the solar eclipse with...

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  17. Give reason: Intoxicating substances should not be consumed.

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  18. Draw neat labelled diagram prokaryotic cell

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  19. Write short notes on Harmful effects of microorganisms

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  20. Write short notes on Magnetic field

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