Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) People Development & Environment Hazards and Disasters
Anaerobic digestion of sewage sludge is
A. An effective process for organic solids
B. This process requires lots of energy
C. This process generates methane as an end product
D. Digested sludge is reduced in volume and easily dewatered
E. Very fast process and thus does not require large sized reactors
Choose the correct answer from the options given below:
1
A, B and C only
2
A, C and D only
3
A, C, D and E only
4
More than one of the above