An empty copper mug floats in a bucket on the surface of the water. Will the water level in the bucket change if the mug is drowned?

The water level in the bucket will drop as the mug displaced more water while floating.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.