water..

it's started..

Composition of water.

Chemically pure water is composed of only two substances, hydrogen and oxygen. These materials in the free state exist only in a gaseous condition. Oxygen forms practically one-fifth of the volume of the atmosphere. Hydrogen does not exist very largely in a free state, though its occurrence in nature as hydrogen is sometimes observed. In nine pounds of pure water in round numbers eight pounds are oxygen and one pound hydrogen. If the composition of water is referred back to the gaseous state of its two components, it is found that two volumes of hydrogen combine with one volume of oxygen to form water. The union takes place on the application of a flame, with tremendous violence. The strongest containers of mixtures of hydrogen and oxygen in proportions to form water are ruptured with the greatest violence if the combination takes place.




Move on to the cycle..

The water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above, and below the surface of the Earth. Since the water cycle is truly a "cycle," there is no beginning or end. Water can change states among liquid, vapor, and ice at various places in the water cycle. Although the balance of water on Earth remains fairly constant over time, individual water molecules can come and go.



The sun, which drives the water cycle, heats water in the oceans. Water evaporates as vapor into the air. Ice and snow can sublimate directly into water vapor. Evapotranspiration is water transpired from plants and evaporated from the soil. Rising air currents take the vapor up into the atmosphere where cooler temperatures cause it to condense into clouds. Air currents move clouds around the globe, cloud particles collide, grow, and fall out of the sky as precipitation. Some precipitation falls as snow and can accumulate as ice caps and glaciers, which can store frozen water for thousands of years. Snowpacks can thaw and melt, and the melted water flows overland as snowmelt. Most precipitation falls back into the oceans or onto land, where the precipitation flows over the ground as surface runoff. A portion of runoff enters rivers in valleys in the landscape, with streamflow moving water towards the oceans. Runoff and groundwater, are stored as freshwater in lakes. Not all runoff flows into rivers. Much of it soaks into the ground as infiltration. Some water infiltrates deep into the ground and replenishes aquifers, which store huge amounts of freshwater for long periods of time. Some infiltration stays close to the land surface and can seep back into surface-water bodies (and the ocean) as groundwater discharge. Some groundwater finds openings in the land surface and emerges as freshwater springs. Over time, the water reenters the ocean, where our water cycle started.


Uses of water

There are four main uses of water from rivers and reservoirs.


Drinking. Water is taken from rivers and reservoirs and pumped to a Water Supply Works where it is treated and cleaned so that it is suitable for drinking. The water is then pumped into peoples homes by pipes and can be used for drinking.

Domestic. Water is used for cooking, washing clothes, in baths, for showers, for washing cars, in hose pipes, in dishwashers, for central heating and other activities in the home. The water is taken from taps and, when it has been used, goes down drains. The waste water finds its way to a Waste Water Treatment Works where it is treated before being discharged back into the river.

Industrial. Factories take water directly from rivers and reservoirs. The water is used for many different things such as cooling, driving machinery and to generate electricity in a hydro-electric power station. The used water is sent to the Waste Water Treatment Works.


Agriculture. Farmers take water directly from the river or reservoir to water their crops. Irrigation channels carry water from the river to the farmer's crops. Sometimes farmers use pumps or machinery to get this water from the river


the end...now why i'm telling u this..??

coz..now in my house...*not really my house*

there is no water for domestic use...

what???yeah...dun know how terrible it is..

but somehow...of course it gives me a lot of trouble...

huh..not really comfortable...

and trying to find a best solution..n the solution is...

please come mr.plumber or watever we shud called it here...and where is
the water supply??

how cud it be *sore??

urgh....

lost???