Water major member of the hydrosphere. Only substance that exists course on earth in three physical states.
* Water in Earth
Sphere| State| % of sphere of urine|
Atmosphere| vapour| 0.5 5%|
Hydrosphere| silver-tongued| >95% oceans>99% ice caps|
Lithosphere| ground water systemcrystallised| <10%|
Biosphere(Living things)| Liquid| 60% - 90% overall50% - 75% humans.|
* Role of water
* Living matter necessity
* crude material (chemical reaction constitutes life, in metabolism and a constituent of cells)
* resolvent life processes occur
* Transports nutrients and botchs from cells.
* Thermal regulator: Smoothes temperature variation.
* A home ground for fish, algae bacteria (shows less temperature fluctuations than land and air)
* Weathers and erodes rocks as liquid and solid.
* Rain and rivers wash material out to sea
* Glaciers turn up swathe from mountain tops and out to oceans
* Water seeps into cracks, freeze, distend and widen crack.
* Natural resource for humans
* Drinking, food preparation, wash and recreation (swimming, skiing)
* Irrigation and watering live stock
* Electricity generator, a coolant
* Hydro electricity
* As a reactant, solvent and cleaning agent and waste disposal
* Transport (ships)
* Solute: part dissolved in solution.
Solvent: part that does the dissolving in a solution.
Solution: homogenised liquid mixture of 2 or more substances.
Properties of water
lift Tension: measure of resistant of a liquid to increase its surface area. (The the value, the the tendency of liquid to form a world(a) drop rather than spread).
* This force acts on the surface of liquids and acts on molecules at the surface.
* Water molecules on the surface have hale hydrogen bonding force downwards into the rest of water resulting in high surface...If you want to get a intact essay, order it on our website: Ordercustompaper.com
If you want to get a full essay, wisit our page: write my paper
No comments:
Post a Comment