Study carefully the experimental set-ups labelled A, B and C. 

(a) What is the aim of the experiment for which the apparatus has been set up?

(b) List the experimental set-ups in the order in which water has risen through the soil samples, starting with the highest 

(c) List six items of apparatus used in the experimental set-up.

(d) Describe briefly the procedure used in setting up the experiment.

(e) Why is there a difference in the water levels of the soil samples in the set ups labelled B and C?