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100001 is a prime number or not ?...

100001 is a prime number or not ?

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LAKHMIR SINGH & MANJIT KAUR-SOME NATURAL PHENOMEAN-EXERCISE
  1. What happens when the two plates of earth's crust moving in opposite d...

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  2. What happens when two moving plates of earth's crust collide head on w...

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  3. 100001 is a prime number or not ?

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  4. Explain why , it might be dangerous to raise an umbrella over head in ...

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  5. A person is in open space during a thunderstorm with no shelter (not e...

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  6. Suggest three measures to protect ourselves from lightning.

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  7. Where is the upper end of the lightning conductor fixd in a building ?

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  8. Where is the lower end of the lightning conductor fixd and how ?

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  9. What precautions would you take to protect yourself during an earthqua...

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  10. What precautions would you take to protect yourself during an earthqua...

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  11. State any two precuations which should be observed by people living in...

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  12. What is an electroscope?

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  13. What is lightning ?

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  14. Why does lightning usually strike tall buildings ?

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  15. Why Does Lightning Strike ?

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  16. A pipe can fill a tank in 12 minutes. Another pipe can empty a tank in...

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  17. Name the scientist who invented the lightning conductor.

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  18. Why are lightning strike more frequent in hilly areas ?

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  19. What is an earthquake ?

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  20. What are two main situations in which earthquakes occur ?

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