(B) Answer the following questions: [5]
1. Explain the functions of water according to its properties:
(i) Fluidity
(ii) Good coolant
(iii) Cleaning ability
(iv) Universal solvent
2. Mention any four adaptations which help aquatic animals to survive.
3. The velocity of a moving body increases from 15 m/s to 30 m/s in 5 seconds.
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