| |
|
|
Life on this planet Earth is sustained because of the unique properties of water. Water is the medium of life carrying nutrients through our body and supporting millions of biochemical reactions in our body to keep us alive.
|
 |
| Water is a polar molecule as the opposite ends of molecule have opposite charges because of which two water molecules are held together by hydrogen bond, which leads to the exotic properties of water. Water’s cohesive behaviour arising out of hydrogen bonding makes it more structured and contributes to the transport of water and dissolved nutrients against gravity in plants. Hydrogen bonding also results in high specific heat of water, which helps in stabilization of temperature in lakes, rivers, oceans and on land within limits that permit life. |
|
|
Water is a versatile solvent due to its polarity. Water is a solvent of life as many different kinds of polar compounds are dissolved in the water of biological fluids such as blood and liquid within cells. Dissociation of a water molecule into hydrogen and hydroxide ions maintain a balance between acids and bases in cells and maintain the pH of biological fluids.
|
|
|
Water exists in nature in all three physical states of matter: solid, liquid and gas. Water is more dense in liquid form than in solid form because of the unique bonding and structure of the water molecule. The floating ice on top of the denser liquid water in water bodies insulates the rest of the water from the freezing temperatures and thereby saving the aquatic life.
|
|
