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प्रश्न
Give four reasons, why the use of cowdung in biogas preferred to burning of cowdung cakes.
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उत्तर
Use of cow-dung in biogas is preferred to burning of cow-dung cakes because:
- Biogas does not produce any smoke and hence causes no pollution.
- Biogas leaves behind no ash on burning.
- Calorific value of biogas is very high as compared to cow-dung cakes.
- Biogas can be used for driving engines of tube wells while cow-dung cakes can not be used for this purpose.
संबंधित प्रश्न
Name the agent which decomposes animal dung into biogas.
Write any two uses of biogas.
How is charcoal obtained from wood?
Answer the following question.
Why is biogas considered excellent fuel?
Biogas is a better fuel than animal dung cake because:
The main constituent of biogas is ______.
Choose the incorrect statement.
A biogas plant is where biogas is produced by fermenting biomass.
In which of the parts would you find anaerobic bacteria?
A biogas plant is where biogas is produced by fermenting biomass.
Biogas is a better fuel than animal dung cake because:
(a) Biogas is a renewable source of energy.
(b) Animal dung cake has a higher calorific value.
(c) Biogas has a high heating capacity.
(d) Biogas burns without smoke.
What is biomass? What can be done to obtain bio-energy using biomass?
