Water by: citlalli & MArley

USES FOR WATER

Water is used in many things such as agriculture, which is increasing water scarcity, industrial, domestic, recreational, and environmental purposes. In domestic use about 8% of water worldwide is used. It is used for things such as for bathing, cooking, cleaning, laundry, toilet flushing, gardening, and for drinking. Basic domestic use is about 50 liters/day/person- excluding water for gardening. Most water in developed countries, the water supplied to domestic, commerce, and industry, is all of drinking water standard, even though only a small portion is actually consumed or used in food preparations.

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In recreational use the amount of water used is small, but it constantly growing. This use of water is often tied to reservoirs. if water in reservoirs are kept higher than needed to, the water retained would be CATEGORIZEd as recreational usage. recreational uses of water often consist of white water boarding, anglers, water skies, nature enthusiast, and swimmers. Golf courses are often targeted as using excessive amounts of water, but they are often protected by categorizing its use as agricultural.

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WATER IS ALSO OFTEN USED FOR AGRICULTURE, IN FACT ABOUT 70% OF WATER WORLDWIDE IS USED FOR IRRIGATION. WITH 15-35% OF IRRIGATION WITHDRAWALS BEING UNSTABLE IT TAKES AROUND 2,000-3,000 LITERS OF WATER TO PRODUCE ENOUGH FOOD THAT WILL SATISFY ONE PERSON'S DAILY DIETARY NEED.

water used for environmental purposes is not a large amount used, but this amount could be reduced to save water.

About 22% of water worldwide is used in industry . It is used for things such as hydroelectric dams, thermometric power plants- in this case water is used for cooling-, ore and oil refineries-used in chemical processes, and manufacturing plant- use water as a solvent. some industries may have a very high use but not as large of an amount as agriculture. Pressurized water is used in water blasting and water jet cutters. High pressure water guns are used for precise cutting-this works well, is relatively safe, and is not harmful to the environment. Water is also used to cool machinery as a way to prevent overheating, or prevent saw blades from over heating. not as much water is used for cooling then other industrial related things.

Hydroelectricity

Water is a renewable power generation. Hydroelectric power takes energy water forces flowing downhill, driving a turbine connected to a generator. This type of hydroelectricity is a low-cost, non-polluting, renewable energy source. Notably, hydroelectric power can be used for load following unlike most renewable energy sources. Generally, the energy in a hydroelectric plant is supplied by the sun. Heat from the sun evaporates water, and condenses. Pumped-storage hydroelectric plants also exist, they use grid electricity to pump water uphill when water isn't in high demand, and vis-versa. Hydroelectric power plants usually need artificial lakes. Evaporating in these lakes is higher because they are large areas displayed to elements. Driving water through a turbine tunnel briefly removes water, creating water withdrawal. Water withdrawal on wildlife varies depending on the type of the power plant.

Water Properties

The hydrogen bond between water molecules is the reason why two of water is unique properties, cohesion and adhesion. Cohesion refers to the fact that water sticks to itself very easily. Adhesion means that water also sticks very well to other things, this is why it spreads out in a thin film on certain surfaces, like glass.When water comes into contact with these surfaces, the adhesion forces are stronger than the cohesive forces. That's why instead of sticking together in a ball, it spreads out. Water also has a high surface tension, meaning that the molecules on the surface of water are not surrounded by similar molecules on the molecules on all sides, so they're being pulled only by cohesion by the molecules deep inside. These molecules cohere to each other strongly, but adhere to the other medium weakly. Surface tension makes these water drops round so they cover the smallest possible surface area.

Created By
Citlalli Reyes-Perez
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Credits:

Created with images by bella67 - "drip drop of water wave" • romaneau - "maldives ile beach" • PeterKraayvanger - "water lily aquatic plant nature" • photofarmer - "Plastic Laying Machine" • SD-Pictures - "industry sunrise sky" • AshLM - "hoover dam nevada" • aitoff - "wet leaf droplets"

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