Question

A dog is sitting in a boat which is floating in a pond. If the dog drinks some water from the pond then:

• A. the level of water in the pond decreases
• B. the level of water in the pond increases
• C. the level of water in the pond first increases, then decreases
• D. the level of water in the pond remains unchanged

Answer 1

The correct option is D the level of water in the pond remains unchanged

There Will be no change in the water level of the pond, as the water which was drawn from the pond went to the dog body, thereby increasing his weight. So the decrease in level of water will be compensated by volume displaced by increase in weight of the dpg.

Therefore option $D$ is correct.