MCQ
Aquatic animals use $.........$ dissolved in water to respire:
- A$\ce{CO_2}$
- B$H_2$
- ✓$O_2$
- D$\ce{H_2O_2}$
✓
Answer
Correct option: C.
$O_2$
Aquatic animals use oxygen gas dissolved in water to respire.
The oxygen dissolve in marine water by diffusion from the surrounding air.
This dissolved oxygen is then used by marine animals for respiration.
The oxygen dissolve in marine water by diffusion from the surrounding air.
This dissolved oxygen is then used by marine animals for respiration.
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