An incubator is primarily used for –

Correct option is D

✅ Correct option: (d) Cultivation of micro-organisms
· Incubators maintain optimal temperature and humidity required for microbial growth.
❌ Other options:
· (a) Filtration – Done using filter units, not incubators.
· (b) Sterilization – Achieved using autoclave/hot-air oven.
· (c) pH measurement – Done using pH meter.