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प्रश्न
Compare and contrast biomass and hydroelectricity as sources of energy.
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उत्तर
| Biomass | Hydroelectricity | |
| 1 | Biomass energy is generated from organic matter including wood, agricultural waste and cow dung. | Hydroelectricity is produced from the potential energy of water stored at a height. |
| 2 | Biomass energy can only be used for heating and cooking. | Hydroelectricity can be used for running all types of electrical appliances. |
| 3 | No special device is required to produce energy from biomass. | Hydroelectricity can be produced by establishing a hydroelectricity plant. |
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