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What is global warming?...

What is global warming?

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  • COAL AND PETROLEUM

    LAKHMIR SINGH & MANJIT KAUR|Exercise EXERCISE|84 Videos

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LAKHMIR SINGH & MANJIT KAUR-COMBUSTION AND FLAME-EXERCISES
  1. Make a labelled diagram of a candle flame.

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  2. What makes the middle zone of a candle flame luminous (or light-giving...

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  3. What is global warming?

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  4. Name the gase whose increasing percentage in air in leading to global ...

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  5. State a harmful effect which can be caused by global warming.

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  6. Explain how, burning of fuels such as coal, petrol and diesel leads to...

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  7. Which of the following substances has the lowest ignition temperature ...

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  8. One of the following is not a combustible substance. This one is :

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  9. Which of the following is not used in making matchsticks these days ?

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  10. Which of the following undergoes spontaneous combustion ?

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  11. Which of the following statement is not correct about carbon dioxide a...

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  12. Fires in underground coal mines usually occur due to the :

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  13. The calorific value of a fuel is 40000 kj/kg. This fuel is most likely...

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  14. Which of the following has the fuels has the highest calorific value ?

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  15. On a cold winter night, the persons sleeping in a room with closed do...

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  16. Which of the following burns without producing a flame ?

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  17. Which of the following fuels has the lowest calorific value ?

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  18. Which of the following is the main cause of global warming ?

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  19. Which of the following gas does not contribute to the formation of aci...

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  20. Which of the following is the most environment friendly fuel to be use...

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