Question 1
(a)Define the term mass wasting. (2marks)
(b)Name the factors to consider when classifying mass wasting.(3 marks)
(c)Name five controls and triggers of mass wasting.(5 marks)
(d)Differentiate between a flow and a slide. (10 marks)
(e)Describe the importance of water in mass wasting.(5 marks)
Question 2
(a)Discuss human beings as a soil forming factor. (10 marks)
(b)Discuss the most effective chemical processes of soil formation in the tropics. (10 marks)
(c)State ways in which topography modifies soil profile.(5 marks)
Question 3
(a)Discuss the formation of;
(I)Nitisols ( 8 marks)
(ii)plinthosols (5 marks)
(b)Explain how gleysols can be managed for agricultural production.(4 marks)
(c)Explain factors which accelerate the rate of soil development.(8 marks)
Question 4
(a)Explain the following soil profile sequences.
(I)ACR. (3 marks)
(ii)ABt,Bt2 CR. (3 marks)
(iii)ABg E CR. (3 marks)
(IV)BECR. (3 marks)
(V)HABCR. (3 marks)
(b) Explain the conditions under which:
(I)Horizon A would tend to be horizon B. (5 marks)
(ii) Horizon B would tend to be horizon A.(5 marks)
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