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The number of the ways in which 5 girls ...

The number of the ways in which 5 girls and 3 boys can be seated in a row so that no two boys are together is

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The population of green grasshoppers will increase because they will not be visible on green grass as a result, the brown grasshoppers will get eaten. The phenomenon involved is natural selection
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CPC CAMBRIDGE PUBLICATION-DEPARTMENTAL MODEL QUESTION PAPER - 1-ANSWER THE FOLLOWING QUESTIONS
  1. Draw the ray diagrsm showing the position of the object and image to g...

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  2. Draw the diagram of the apparatus to show that acid solution in water ...

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  3. The number of the ways in which 5 girls and 3 boys can be seated in a ...

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  4. Define the rule used to identify the direction of induced current in a...

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  5. On what principle an electric motor works? Define the rule used to ide...

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  6. Explain the flow of energy and harmful chemicals in an ecosystem.

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  7. What is nuclear energy? What are the hazards of nuclear power generati...

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  8. List the four characteristics of a good source of energy. Name any two...

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  9. When sulphuric acid is added to 1g solid sodiumchloride taken in a tes...

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  10. The pH values of four solutions A, B, C and D are 5, 12, 8 and 9 respe...

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  11. Write the functions of Forebrain, Medulla and Cerebellum in human brai...

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  12. The molecular formula of three fatty acids A, B and C present in oil o...

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  13. A tall plant with red flowers (TrRr) is self pollinated. Represent the...

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  14. Observe the following figure. AB is light ray travelling from liquid t...

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  15. An object 2cm tall is kept on the principal axis of a converging lens ...

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  16. Explain the three types of decomposition reaction with the help of bal...

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  17. Draw the diagram showing the structure of human alimentary canal and l...

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  18. How did Mendeleev arrange the elements? He left empty places in his pe...

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  19. There are two metallic wires of the same thickness made from iron and ...

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  20. a) Explain why variations are observed in the offsprings formed by se...

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