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What is the advantage of disposable pape...

What is the advantage of disposable paper cups over disposable plastic cups ?

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Disposable paper cups are biodegradable as they are degraded by saprophytic bacteria and fungi. The disposable plastic cups remain in the environment for longer period of time causing pollution as they are non-biodegradable.
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CPC CAMBRIDGE PUBLICATION-CPC MODEL QUESTION PAPER 6-ANSWER THE FOLLOWING
  1. How are the areas of study-evolution and classification interlinked ?

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  2. Draw the diagram of a simple electric motor. Label the following parts...

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  3. What is the advantage of disposable paper cups over disposable plastic...

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  4. What does energy flow diagram indicate ?

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  5. Draw the diagram of an electrolytic cell used in the purification of c...

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  6. Why are decomposition reactions called the opposite of combination rea...

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  7. Give an example of redox reaction, naming the substances which are oxi...

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  8. Draw the structure of a neuron and label and following parts.

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  9. What is short circuit ? State one condition that leads to it . Name th...

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  10. Draw they ray diagram showing the position of the object and image , ...

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  11. a) Define Resistance of conductor. b) Calculate the equivalent resis...

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  12. What is Geothermal energy? How can it be harnessed to produce electric...

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  13. List three factors responsible for the wind . State three limitations ...

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  14. Define and show in a diagram, the following terms relating to concave ...

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  15. What happens when a solution of baking soda is heated? Write chemical ...

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  16. (i) Write the name given to bases that are highly soluble in water. Gi...

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  17. How does a solenoid behave like a magnet ? Can you determine the nor...

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  18. a) What is meant by least distance of distinct vision? b) What happe...

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  19. Why are we not able to see the things clearly when we come out of a dr...

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  20. a) Define speciation? b) Mention the sex chromosomes present in hum...

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