One of the main disadvantages of mechanical tillage is the

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a 100kg NPK 15: 15: 15 compound fertilizer has a filler make -up weight of

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Which of the following practices leads to land degradation in the savanna zones of West Africa?

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The processes by which animals release carbon dioxide into the air are

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Plant nutrients are restored during the fallow period through

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Which of the following species of bacteria lives symbiotically in root nodules of legumes?

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Soils can become acidic as a result of the continuous application of

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When compost is added to said, it

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The rock weathering process involving the equation; CaCO3 + H2CO3 → Ca(HCO3)2 is called

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Which of the following statements best describes sediment rocks?

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Marble is a metamorphic rock formed from

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Which of the following factors affects the onset of flowering in crops?

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