Question

A bird is flying over a swimming pool at a height of 2m from the water surface

Answer 1

then suddenly it falls in swimming pool.

Answer 2

A bird is flying over a swimming pool at a height of 2 m from the water surace and then  starts flying at a height of 3 m then 4 m and so on upto 10 m when it realises that it was flying at a height which is far more greater than the height it should fly. So it comes down and again starts flying at a height 2 m above the water of the swimming pool.