Which water is easier to swim in – sea or river? Why?

The Archimedean force is the same in both cases – it is equal to the weight of the swimmer, but it is easier to swim in seawater, since its density is higher.

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.