engineering recuitment ICAR Technician 2021 Mock Test (Re-Exam) General Science Biology Biology in Everyday life
A fish dies when it is put in an aquarium filled with previously boiled water but cooled to room temperature. This happens because the water in the aquarium is:
1
Depleted in minerals
2
Depleted in oxygen
3
Unfit for drinking by fish
4
Unfit for swimming by fish