1.)High Heat Capacity

-Water has a high beat capacity; that is it absorb and releases large amounts of heat before its temperature that might otherwise results from intense sun exposure,chilling winter winds

Or internal events that liberate large amount of heat.

2.)Chemical reactivity

-water is an important reactant in some types of chemical reactions.For example, to digest foods or break down biological molecules, water molecules are added to the bonds of the larger molecules.Such reactions are called bydrolysis reaction, a term that specifically recognizes this role of water.