Boats or ships
We float or there is a possibility you can sink. You sink when you are heaver than the mass of the water. You float when you are lighter than the mass of the water.
boyancy
No, no US coin is light enough to float when dropped in water.
It increases water density
its do do with how much oxyen we have inside us
Two forces that affect us when we float in water are buoyancy, which pushes us upwards due to the displacement of water, and gravity, which pulls us downwards. The interaction between these two forces determines our stability and position while floating.
a lot of insects carry diseases
A person can float in saltwater because it is denser than freshwater. The salt in the water increases its density, making it easier for objects like the body to float. This difference in density is why a person can float in saltwater but not in freshwater.
Because the air in our lungs and body makes us buoyant (float)
Humans float in water due to the air in the lungs. This is why a dead body will sink for 24 hours before rising again. The lungs hold no air, but the gasses produced by the rotting flesh will eventually bring the body back tot he surface. This is also why dead bodies in water tend to have a bloated appearence.
Think of swimming. How your body stays afloat is usually because it is lighter than the water that it displaces. For some people with very very little body fat, if they stop swimming they will sink but for most of us we dont. Now think what would happen if the water was heavier? You would float higher in the water because you would weight even less in water so-to-speak Now, how does water become heavier? By adding in things like salt. So the more salt there is in water, the easier it is to swim in it and the higher you will float in it. If you were to swim in pool filled with pure clean distilled water, you would have to swim the hardest to stay above the water. If you swim in salt water like ocean water, you float higher in the water. If you swim in salt water like the Great Salt Lake in Utah, then you float relatively high in the water.
It helps for the citizens to be able to buy nice things for themselves. For example to buy food, water, clothing, electricity, clothing and all of the basic needs for human life to carry on.