Answer:
The high specific heat capacity of water.
Explanation:
When there is a need to raise the temperature of a given amount of a substance by a given amount,the amount of heat required is called heat capacity for that substance.Therefore the amount of heat energy required to raise the temperature of I g of water by 1 degree is called the specific heat capacity of water.
This property of water is due to abundant hydrogen bonds in water molecules.These bonds restricts moment of molecule of water,and thus thier diffusion. Thus in order to free these molecules the hydrogen bonds must be heated up to break so that they could gain kinetic energy to escape. This characteristic makes molecules of water to resist wide fluctuations in body temperature.Hence stabilizing the body fluid in living organism
A change in earth temperature is managed by water specific heat capacity because,it takes significant amount of heat for the water to boil,and when there is a need release heat during cooling this is done slowly with insignificant rise in the earth temperature.,(since 75% of earth is water,)this keeps the earth temperature in a tolerable limits.
