green revolution has definitely increased the agricultural output but environmentalists argue against it List any three merits and demerits of it
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Merits : 1. Higher Yield. 2. Machines made for ploughing harvesting easy. 3. Surplus food can be sold to earn more. 4. Pests and insects controlled by pesticides and insecticides. 5. Good irrigation enhances production. Demerits : 1. Loss of fertility with use of chemicalfertilizers. 2. Use of tube wells reduced the water table. 3. Chemical fertilizers polluted ground water. 4. Kills bacteria and micro organism helpful fossil. 5. Excessive use of fertilizers makes soil alkaline and unfit for cultivation.
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