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Give scientific reasons: In cold regi...

Give scientific reasons:
In cold regions in winter the Pipes for water supply break and even rocks crack.

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CHETANA PUBLICATION-MODEL ACTIVITY SHEET-Exercise
  1. True or false The filament in the electric bulb is made of a wire ...

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  2. For the given polymer,give the name and structure of its constituent m...

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  3. Give scientific reasons: In cold regions in winter the Pipes for wa...

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  4. Give scientific reasons: Carbonate and suphide ores are usualy conv...

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  5. We cannot clearly see an object kept at a distance less than 25 cm fro...

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  6. What do you mean by dispersion of light?

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  7. Draw the structural formula of the following 3-methyl pentane

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  8. Write balanced chemical equation for the given word equation Copper+Co...

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  9. The focal length of a convex lens is 20 cm.What is the power?

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  10. Define : Centripetal force

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  11. Define : Centripetal force

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  12. Write the laws given by Kepler.How did they help Newton to arrive at t...

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  13. Suppose the orbit of a satellite is exactly 35780 km above the earth'...

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  14. Merits of Modern periodic table over Mendeleev's periodic table

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  15. Complete the diagram of rainbow formation.

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  16. name the phenomenon of light involed in the given process.

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  17. What is Combination reaction?Give one example with balanced chemical e...

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  18. What is redox reaction?

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  19. The force of Graviation between two bodies having irregular shape is t...

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  20. If the distance between the two bodies is tripled, what will be the Gr...

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