TEST OF PRACTICAL KNOWLEDGE QUESTION (a) State the major elements contained in each of specimens A, B and C. (b) Give three uses of specimens A and B. (c) E...

TEST OF PRACTICAL KNOWLEDGE QUESTION

(a) State the major elements contained in each of specimens A, B and C.

(b) Give three uses of specimens A and B.

(c) Explain three ways in which specimen C is important in agriculture.

(d) Describe three physical differences between specimens B and C.