Question

Explain two ways in which water’s properties help sustain life.

Answer 1

Without water there is dehydration of many living organisms, without water marine-life would not exist. 

Water is one of the main compounds of the human body, making up more than 60% of the human body.

Answer 2

Answer:

Solubility and Specific Heat

Explanation:

Solubility: Water is an excellent solvent because it is capable of dissolving huge amounts of substances. The substances that dissolve are called solutes and when mixed with the solvent forms a solution. This property is very important for living beings because they absorb nutrients (such as calcium, magnesium, etc.) dissolved in the water they drink.

Specific Heat: The specific heat or thermal capacity of water is the amount of heat that is required to raise the temperature of 1g of a substance by 1 ° C. Water has a high specific heat, which means that it can raise or lower its temperature greatly without changing its physical state, but otherwise it takes longer to happen compared to other substances. Since water occupies about 70% of the earth's surface, this property helps to control global warming. Oceans store heat in warm weather that is released in cold weather.