Question
A body just floats in sea water but sinks in river water because:
The correct answer is
Sea water has greater density than river water.
The correct answer is the density of seawater is greater than that of river water.
- A body floats only in seawater but sinks in river water because seawater has a higher density compared to river water.
- Seawater is denser than river water due to the presence of additional salt.
- The density of a substance is defined as mass per unit volume. This means that the buoyancy of seawater on a body is greater than the weight of the body. Therefore, it floats, while the water from the river has less buoyancy than the weight of the body, causing it to sink.
- Due to the higher viscosity of seawater compared to fresh water, its salinity is also higher.
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