alleryWhich gas dissolved in water is vital for animals and plants living in water?
AHydrogen
BOxygen
CHelium
DNeon
Answer & Solution
Correct answer: B. Oxygen
1. Some gases are soluble in water and others are not.
2. Oxygen dissolves in water.
3. This dissolved oxygen is very important for the survival of animals and plants that live in water.
_Source: NCERT Curiosity Class 6 Science, Ch 6, 6.3.4_
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