Home
Class 10
PHYSICS
With the depletion of fossil fuels, we a...

With the depletion of fossil fuels, we are facing serious energy crisis.
(i) Suggest some whacky funny forms of alternative energy.
(ii) What moral do these funny sources of energy convey ?

Text Solution

Verified by Experts

(i) (a) A state-of-the-art toilet has been developed that employs microwaves to chemically alter human waste into syngas-a mixture of `CO_2` and `H_2`. This syngas can be used in stacks of fuel cells to generate electricity.
(b) A Pedal-A-Watt bikestand works by powering a generator with the movement of bike's rear wheel. Using this, a person in top condition can generate `500 W` of power which is enough to power two laptops, two flurescent light bulbs and a cellphone - as long as you maintain the pedalling source.
( c) Harnessing a cow's farts as a fuel source might be tricky but it is not inconceivable. Researchers have developed a special bovine backpack that captures a cow's emission via a tube attached to cow's stomach and discovered that the animal produces `800` to `1000` litres of gas each day.
(d) Coffee grounds can contain as much as `2 %` oil. Researchers estimate that if all the waste grounds generated by the world's coffee drinkers were gathered and reprocessed, the yield would be `2.9` billion gallons of diesel fuel per year.
(ii) Nature does not believe in the wastage of any kind. Everything that comes our way can be pur to use.
Promotional Banner

Topper's Solved these Questions

  • SOURCES OF ENERGY

    PRADEEP|Exercise Exemplar(Multiple Choice)|15 Videos
  • REFLECTION AND REFRACTION

    PRADEEP|Exercise NCERT EXEMPLAR PROBLEMS|19 Videos
  • THE HUMAN EYE AND COLOURFUL WORLD

    PRADEEP|Exercise (Mock Test)Sec - B|6 Videos

Similar Questions

Explore conceptually related problems

Combustion of fossil fuels generates a lot of air pollution. Can you suggest any two alternative sources of energy which do not cause any pollution?

What are fossil fuels?How are they formed?why are they non-renewable sources of energy?

What are the enviourmental consequences of using fossil fuels ? Suggest the steps to minimise the pollution caused by varies sources of energy including non-conventional sources of energy.

PRADEEP-SOURCES OF ENERGY-Mock Test
  1. Which of the following gases is a major consituent of biogas : Carbon ...

    Text Solution

    |

  2. How is the increased demant for energy affecting our environment adver...

    Text Solution

    |

  3. "Energy generated by the water stored in a dam can be considered to be...

    Text Solution

    |

  4. State two advantages and two limitations of solar energy.

    Text Solution

    |

  5. What are fossils fuels ? Name any three fossil fuels.

    Text Solution

    |

  6. 1 g of coal on complete combustion liberates 18 k J of heat. Calculate...

    Text Solution

    |

  7. In which forms is energy stored in oceans ? Mention any three forms th...

    Text Solution

    |

  8. What is geothermal energy ? Give three merits of geothermal energy.

    Text Solution

    |

  9. Why is biogas considered to be an ideal fuels ? Give four reasons.

    Text Solution

    |

  10. Describe the processes that led to the formation of petroleum in natur...

    Text Solution

    |

  11. Why is biogas superior or animal dung as a fuel ?

    Text Solution

    |

  12. Draw a neat labelled diagram of a biogas plant.

    Text Solution

    |

  13. Discuss one limitation each of extracting energy from : (a) water ...

    Text Solution

    |

  14. The recent horrific storm surge flooding New Jersey and New york in US...

    Text Solution

    |

  15. Explain what is meant by anaerobic degradation ?

    Text Solution

    |

  16. What causes the wind to blow ? What is a wind energy farm ?

    Text Solution

    |

  17. With the help of a neat diagram, explain how the design of a box-type ...

    Text Solution

    |

  18. With the depletion of fossil fuels, we are facing serious energy crisi...

    Text Solution

    |

  19. Describe the action of a windmill by drawing a simple diagram. How is ...

    Text Solution

    |

  20. Energy from various sources is considered to have been derived from th...

    Text Solution

    |