1. Fresh water comes from ice sheets, ice caps, glaciers, icebergs, lakes, rivers and stream. They also come from underground sources like; groundwater in aquifers and underground streams. The water in glaciers and ice caps is frozen. Only 3% of the water on the planet is fresh. The water all has something to do the water cycle. First you've got evaporation; water becomes water vapour and changes into a gas. Then there is condensation and the water vapour becomes a cloud. The last one is precipitation, this is rain, snow, etc. (to be continued)
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3. 70% of the fresh water is ice in ice caps or glaciers. Sometimes it's snow. The rest of the fresh water is used by humans. So in comparison there's not much left. Freshwater is used for washing, food and drinks. We can't drink salt water because than we will die. (To be continued)
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5. The average amount of salt in one litre salt water is 35 grams. If the freezing point if salt water decreases the amount of salt ink the water increases. (To be continued)
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10. Acid can also appear in snow, fog and other forms of precipitation. When humans burn skeleton materials something that is called sulfur dioxide and nitrogen dioxide come in to the air and spread around the world. These gasses are taken up by water and air or oxygen. When acid rain comes down by precipitation it flows across the surface and at the end occurs itself into the soil. Acid rain has a lot of effects on nature, though it has most effect on lakes, rives and all other aquatic areas. Aluminium is absorbed by acid rain, this material comes form the soil in to lakes and rivers. Therefore its toxic for all the animals that live in the water.
Water module questions.
What is the importance of clean, f...
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...r quality is affected.
Q. What is the affect of water pollution on people?
A. If they eat seafood that comes from the polluted water they can get diseases like hepatitis and in poor countries they drink from the polluted water and then they can get cholera.
Q. Explain how science and technology can help to fight against the problems of water pollution.
A. They helped to invent machines that for eg. rinse the polluted water so it can be used again.
Q. . How does the density of water change in the different phases?
A. When the water evaporates the mass of the water changes a lot but the density stays the same.
Q. . Explain how science and technology can help to reduce pollution when hydrogen cars are used (benefits).
A. Hydrogen cars have a sort of water vapor fuel they drive from so it doesn't affect the global warming that is going on which is good.
Water that has changed throughout the hydrologic process travels from the irrigation treatment and enters into the aquifers. First...
... removing and/or stopping the pollution that is emitted into the air from large refineries or factories. In fact, the essay claims that “Of several techniques to remove pollution during industrial coal combustion, perhaps the most effective is ‘scrubbing,’ in which gases are washed in a desulphurizing bath before going into the atmosphere.” This is informative because it shows that there is a way control acid rain. Similarly, the essay stated many different ways in which everyday people could help control the amount of pollution that is discharged into the air. A solution like carpooling so that the amount of pollutants that are emitted into the air are lowered is just one of the many ways discussed in the essay for society to lower the pollution in the air. The informative way in which Robert Collins presented his idea’s added to the effectiveness of the essay.
Automobiles play a major role in today's society. Almost every American owns at least one motorized transportation vehicle. Some say they make our lives better by reaching places faster than before. Others say they are a harmful to the environment. Have they made our society better or worse? They may be fast, but do we as humans want our environment to suffer because of time. Face it, cars pollute. And they release destructive chemicals into the air. Air pollution can threaten the health of many subjects in the environment including human beings.
Water is essential for life, and consumes seventy one percent of the Earth's surface. Saltwater is more abundant in the world. Although, freshwater makes up about two percent of the Earth's surface and is what people drink, saltwater makes up over sixty eight percent of the Earth's surface and is much more compelling than freshwater. Even though, both salt bodies of water and fresh bodies of water are packed with life, mysteries, dangers, uses and activities, salt bodies of water are more fascinating.
Water is essential for life, and occupies seventy one percent of the Earth's surface. Saltwater is more abundant in the world. Although, freshwater makes up about two percent of the Earth's surface and is what people drink, saltwater makes up over sixty eight percent of the Earth's surface and is much more compelling than freshwater. Even though, both salt bodies of water and fresh bodies of water are packed with life, mysteries, dangers, uses, and activities, salt bodies of water are more fascinating.
According to Gunther (n.d.), “There are more than 326 million trillion gallons of water on earth (para. 1).” With so much water on earth, how can there possibly be a lack of access to fresh water for drinking? There are two types of water that make up earth’s supply; freshwater and saltwater. Freshwater makes up roughly 3% of earth’s water supply, while saltwater makes up roughly 97% (National Geographic, n.d.). Freshwater is what humans and animals can drink and survive off of. Salt water they cannot. The majority of freshwater is inaccessible. It is frozen in glaciers and icecaps, leaving about 1% available as surface water (N.G., n.d). This 1 percent of earth’s freshwater is what is available to nourish
The automobile has had a tremendous impact on society and the environment since its development in the beginning of the 20th century. Today, there are over 500 million motor vehicles on the earth. The automobile's efficiency, style, and performance have changed over the years, but there is one thing that has not - the pollution the automobile generates. Because of the pollution, people find themselves asking whether this technology has helped our society or hurt it. Should the consequences of the automobile be cause to eliminate it? Or should science develop technology to eliminate the pollution caused by the car?
places with the most people have the least water. About two-thirds of Earth's fresh water is ice,
Water is one of the most essential non-renewable natural resources on the Earth. Technically, an un-hydrated human being can live no more than three days. In the United States, people consume water mainly from tap water and bottle water. However, the consumption between these two sources is not even but lean to one side heavily. According to the Natural Resources Defense Council, people consume from 240 to over 10000 times more per gallon for bottled water than they usually do for tap water. (NRDC) In addition, according to a survey from US National Library of Medicines, only 17% of the participants prefer to drink tap water exclusively.(US National Library) Compared to the bottled water which is shining like a superstar, tap water is like a diligent worker in the shade, unpopular but useful. The extremely unbalance of bottled water consumption implies that a commonly hold conception exists: bottle water is superior to tap water. In fact, scientific evidence proves that tap water is nothing different than bottle water. More importantly, the excessive consumption of bottled water is an irrational use of resources and creates severe environmental issues.
It might be easier to live a healthy life for many people, but for others it can be very challenging. I have tried to be healthy so many times, but I always fell off the wagon. For many days I would “feel” healthy, but in reality I was not the healthiest person mentally or physically. I knew that I had to change my behavior, and become healthier (or at least almost healthy) if I wanted to live a longer life. I began my journey by drinking more water, balancing my eating with exerting, all while trying to stay mentally well.
Drinking water is sourced from bodies of freshwater. Freshwater is quite scarce, but it is even scarcer than one might think: about seventy percent of all freshwater is frozen in the icecaps of Antarctica and Greenland and is unavailable to humans. Most of the remainder is present as soil moisture or lies in deep underground aquifers as groundwater. It is not economically feasible to extract this waste for use as drinking water. This leaves less than one percent of the world’s fresh water available to humans.
Wastewater is the combination of water-carried or liquid wastes starting in the sanitary conveniences of dwellings, industrial or commercial facilities. In addition to this, surface water, groundwater and storm water may also be present. It is any water that has been badly affected in quality by anthropogenic influence. It contains waste from residential, industrial and commercial processes. Municipal water contains industrial wastewater, sewage and gray water. Gray water is the water from sinks and showers. Large industries also produce wastewater.
Although there is enormous amount of water is present in different bodies, quite few amounts is present in the form of fresh water and much smaller quantity is in our reach.
Water is on of the most precious natural resources that exist on our planet. “It is delivered from the atmosphere in the form of rain, snow, hail, fog, and condensation and returns to the atmosphere by evaporation and transpiration” (Hannigan 1969). Although many of us love activities that have to do with water, we disregard it and pollute out rivers, lakes and oceans. Slowly but surely we are going to harm out planet till no return. Protecting and conserving nature will secure a better future. 71% of earth is covered with oceans. Sounds like a lot right? Imagine ...
Water is an irreplaceable natural resource on this earth which comprises marine, estuarine, fresh water (river and lakes), ground water across coastal and inland areas. Even though there is huge water resource in this world, about 97% of water is salt water (marine) only 3% is fresh water. And in this small fraction of fresh water a major part is in the form of ice in polar region. So just 0.003% is in the form of ground water and surface water which we can use.