Drinking water or potable water is water safe enough to be consumed by humans or used with low risk of immediate or long term harm. In most developed countries‚ the water supplied to households‚ commerce and industry meets drinking water standards‚ even though only a very small proportion is actually consumed or used in food preparation. Typical uses (for other than potable purposes) include toilet flushing‚ washing and landscape irrigation. Chlorination is the process of adding the element chlorine to water as
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The water cycle is also known as the hydrologic cycle. The water cycle describes the movement of water on‚ above and below the surface of Earth. Water can change states through the stages of the water cycle. Water can change from a solid to a liquid to water vapor in various places of the water cycle. Water moves from one lake to another‚ just like from an ocean to the atmosphere. Water travels by different processes of evaporation‚ condensation‚ precipitation‚ infiltration‚ runoff and subsurface
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The causes of water pollution Water pollution comes from a myriad of sources‚ both natural and from human activity. The most destructive causes of water pollution are man made‚ however. The largest sources include: The burning of coal in power plants emits ash particulates that contain toxic metals like arsenic and lead. Coal and petroleum also contain sulfur compounds. Combustion generates sulfur dioxide‚ a toxic gas‚ and oxides of nitrogen. When emitted from exhaust stacks‚ these two compounds
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The importance of water: Water is the most wanted or used resource in the entire world‚ due to its demand. It is wanted and needed by everyone for various reasons‚ some of these reasons are for everyday things like drinking in order to suvive‚ cooking cleaning‚ technology and even basic things like gardning. It also helps with poverty ‚ health‚ hunger and education. Water is a blessing. If we did not have water neither of us will be here‚ so why are we thanking it by missusing or wasting it for
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Water Conservation Water is essential to Earth. We need it to cook‚ bathe‚ provide power‚ control fire‚ and last but not least‚ we need it to live! Therefore‚ it is very important to human survival. When 70% of Earth is made up of water‚ you would think that we have plenty of water for our needs. But really‚ about 97% of that water is made up of ocean. We cannot use this water because it is too saline for our needs. Only 3% of Earth’s water is fresh‚ and 2% of that supply is frozen
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Water is continuously being recycled in a process called the water cycle. All living things on earth need water to survive. The water cycle has no starting point and no end point. Earth’s water is always in movement and always changing forms‚ it can go from a liquid to a solid to a gas and back to a liquid. The water cycle is how we track movement of water above‚ in and on the earth. The water cycle consists of three major processes‚ condensation‚ evaporation and precipitation. Condensation is the
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Water pollution and pollution in general is a problem that people don’t like to deal with. Water pollution can cause so much damage to people and to the animals that live in that body of water. The laws that we have are doing what they need to but we need to monitor the water more closely because if we don’t catch the pollution when it happens it could cause a big disaster. It could kill all of the plant life that lives in the water and the animals that live there to. Some of the pollutions that
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Access to water is an essential human need therefore; it is a basic human right. An adequate amount of safe water is necessary to prevent death from dehydration‚ and it is also used for personal hygienic requirements‚ and to simply keep sanitized. For most people across the world‚ this is very effortless and common; however for some of the unfortunates‚ access to water is a very difficult task for them. The water crisis is possibly the most severe human threat of our time‚ and the first and most
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The earth has a limited amount of water.That water keeps going around and around and around in what we call the "Water cycle".It is the only way that Earth can be continually supplied with fresh water.The sun is the most important part of renewing our water supply.It can be solid (ice)‚a liquid (water)‚ or gas (water vapor). Water on earth is always changing. How do these changes happen? It is made up of a few main parts:evaporation (and transpiration)‚condensation and precipitation. Evaporation
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fastest in tap water‚ warm water‚ cold water‚ salt water‚ or acidic water. In this lab I wall develop and test a hypothesis‚ analyze data and draw a conclusion. In this experiment I will find out that in a type of water the Alka-Seltzer will dissolve faster and slower. Alka-Seltzer is one of the world’s best known antacids. Its main function is to absorb excess stomach acid. II. MATERIALS: * Tap Water - Warm Water * Cold Water - Salt Water * Acidic Water -5 cups (250 mL
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