(a) Explain what is meant by subsistence agriculture. (2 marks) (b) Discuss briefly the interdependence of agriculture and industry under the following head...

 (a) Explain what is meant by subsistence agriculture. (2 marks) 

(b) Discuss briefly the interdependence of  agriculture and industry under the following headings?

(i) tools, implements and machinery industries; (ii) processing industries (iii) Agro-chemical industries (6 marks)

(c) What is farm surveying? (2 marks) (ii) With the aid of a diagram, explain the use of the 3, 4, 5 method in farm survey. ( 6 marks)