Weight of 1m3 of sea water is lesser than the weight of fresh water of the same volume.
Density of sea water = 1.3g/cm3
Density of fresh water = 1g/cm3
False
Density is defined as mass per unit volume. Since density of seawater is more, the mass of the same volume of sea-water will be more as compared to fresh water. Hence, the given statement is false.