Why should the use of cattle dung cake as fuel be discouraged?
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Why should the use of cattle dung cake as fuel be discouraged?
- Burning of dry dung-cakes causes pollution of the air.
- Dry dung-cakes after burning leaves a large quantity of ash.
- Burning of dung-cakes destroy useful plant nutrients.
- Dry dung-cakes has a lower calorific value.
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