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Students should be involved in manual work because;Manual work relaxes the bodyManual work helps in improving one's skillsManual work gives personal satisfaction/fulfilmentManual work ensures everyone participatesManual work enables people to care for God's creationWork is generally a sacred activity/sign of obedience to God.
The rate of transpiration in wind differs from rate in still air because;In still air, the water vapour lost from the plant accumulates in the air surrounding the leaf, thus increasing humidity which reduces saturation deficit between leaf cells and the atmosphere hence reducing transpiration rates.In wind, the water vapour from the plant(shoot) is carried away from the surrounding of the plant increasing the saturation deficit between leaf cells and the surrounding air; thus reduce rates of transpiration.
Reasons why Africans refused to give their labour to white settlers are; Africans were against the settlers because they took away their land Africans had no value for money Africans did not want to leave their families in the rural areas The settlers gave Africans low pay African were overworked and abused when working
Reasons why the use of fire discouraged in land clearance are;Kills soil micro-organismsLeads to loss of nutrientsLoss of soil moistureDestroys soil structureLeads to soil erosion
Reasons for use of direct rule in Zimbabwe are;The British wanted direct control of mineral wealth so as to maximize profitExisted large number of Europeans to be used in administrationZimbabwe lacked well established traditional systems of government.Past resistance by the people of Zimbabwe made British lose trust in African leaderships.The BSACO provided finances to pay for administrative costs.