TEST OF PRACTICAL KNOWLEDGE QUESTION a)(i) Give two examples of each of specimens A and B. (2 marks) (ii) State three advantages of the application of speci...

TEST OF PRACTICAL KNOWLEDGE QUESTION

a)(i) Give two examples of each of specimens A and B. (2 marks)

(ii) State three advantages of the application of specimen Ain crop production. (3 marks)

(iii) Mention two methods of applying specimen B in crop production. (2 marks)

(b) An experiment was conducted to determine the percentage of water in soil samples C and D.
The results are as shown in the table below:

(i) Determine the mass of fresh soil for each of soil samples C and D (2 marks)

(ii) Determine the mass of water contained in each of soil samples C and D. (2 marks)

(ii) Calculate the percentage of water in each of soil samples C and D. (2 marks)

(c) What type of relationship exists between the amount of water and the amount of air in soils? (2 marks)