Question

explain why water tank in a locality is always at higher altitude than in buildings in a locality​

Answer 1

Answer:

As the vertical height of water column on first floor is less than ground floor, therefore, pressure of water on first floor is less than the ground floor

Answer 2

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Water or any other liquid seeks its own level. Thus, when water tank is situated at the highest point, the water from it will rise up to the tallest building without the aid of any external force.