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@ 53. (a) Name the physical change whic! h leads to the formation of the wi) (ii) Rainfall . State any two effects of physical changes: caused by soil erosion in 54. (a) Name the two muscles found in the human arm. ofa plane mirror. Draw the image of the cup. (02 marks) the environment. State the importance of maintaining correct posture in humans. @ (i) Ice The diagram below shows a cup 12 cm high placed 30 cm infront (ii) State following: State any one function of muscles in the human body. |} en (b} Mirror (i) Name qi).