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Compare the use of manures and fertilizers in maintaining soil fertility.
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Give two limitations of using manure.
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What are the advantages of using manure?
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Name the three most important nutrients required for plant growth.
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How plants get nutrients?
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Classify nutrients according to their sources.
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Distinguish between macronutrients and micronutrients. Give suitable examples.
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sir why dont you invent things that promotes peace ?
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What are emulsions? What are their different types? Give example of each type.
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What are lyophilic and lyophobic sols ? Give one example in each case.
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Discuss the effect of pressure and temperature on the adsorption of gases on solids.
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Why is adsorption always exothermic?
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What role does adsorption play in heterogeneous catalysis?
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