Question

(a) Identify ‘X’, ‘Y’, and ‘Z’.

Hint:

The digester is the heart of the biogas plant, where waste decomposes to produce methane-rich biogas and nutrient-packed slurry for farms.

Answer 1

X: Slurry tank stores organic waste mixed with water. 
Y: Gas outlet releases methane-rich biogas. 
Z: Digester uses anaerobic bacteria to decompose organic material, producing biogas and nutrient-rich slurry for agricultural purposes.