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.
... 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.
It also told that 75% of water is non-drinkable and that 2% is fresh, but 1.6 percent of the planet's water is locked up in the polar ice caps and glaciers. Tapped, the 2009 documentary directed
Many negative impacts have resulted from global warming, but many positive changes have been made by humanity. There have been many ideas on what humans can do to improve on the green house gases and CO2 emissions we create and where it can lead us to. For example, reducing CO2 emissions have been giving many thoughts of what could cause the upraising of green house gases. One of the main sources is automobile emissions. The makers of Shell Gasoline Corporation, a Fortu...
Water pollution is a good medium of transportation and solvent, therefore, this can enable the pollutant substances and toxic contaminants dissolve in the water bodies. Water pollution is a serious global issue today. This happens because of the deaths and diseases occur as well as animals. This issue strongly is led to the worldwide of destruction. The pollution of water is directly affecting the organisms that survive in the aquatic life, such as fish, amphibians and planktons. In some countries, people die each day because of consumption of the polluted water which contains the toxic that is unsuitable for us to drink.
Water quality and sullying are enormous issues for society. We make due off of under 1% of the accessible freshwater on Earth, and quite a bit of that water is polluted. Taints can be regular, creature, or synthetic. There are a ton of perils connected with drinking or cooking with debased water. Maladies, toxins, and poisons can be found in sullied water. There is additionally a conceivable relationship between an expanded malignancy hazard and expending polluted water.
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.
Even though most do not regularly recognize the important role that water plays in all life, based upon everything that we know about water and its importance to human beings, we can see that fresh and clean water is vital to the very existence of the human race. Water is required for all living things to continue to live, including human beings.
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 ...
b. Car manufacturers can produce cars that are less reliant on gasoline and use electrical power instead. Gasoline combustion produces carbon dioxide emissions that harm the atmosphere.
Transportation is a big issue with pollution. Vehicles create smog, catalysts for ozone, and components for acid rain. Smog contains a chemical called ozone. Ozone can seriously affect a human’s health. It reacts with the molecules in the lining of our airways. This then causes inflammation. Acid rain has many ecological effects, but none is as bad as its impact on lakes, streams, wetlands and other bodies of water. Acid rain makes waters acidic, which causes them to absorb the aluminium that goes from soil into water. When bodies of water become more acidic, the numbers and species of fish and other organisms living in the water begin to decrease. There are many examples of water pollution. Raw sewage running into water, industrial waste spills, and exhaust fumes from vehicles. A big problem with raw sewage is that Bacteria use up oxygen in the water, as they decompose the organic material in the water. The lack of oxygen kills animals and other organisms that live in the water. Many harmful chemicals are in industrial waste. These can become drinking water pollutants if not well managed. Car exhaust creates a wide range of gases and solid matter. This causes global warming, acid rain, and it harms the environment and human health. Engine noise and oil spills also cause pollution. Since most oils float, the marine creatures most affected by oil spills are animals like sea otters, and seabirds that are found on the shore or in
Polluted water is a hazard to everyone. It has been suggested that water pollution is the leading worldwide cause of deaths and diseases, and that it accounts for the deaths of more than 14,000 people daily. An estimated 580 people in India die of water pollution related illness every day.
Many systems for humans would not function without clean water, such as: water supply, sanitation, agriculture, and health, which are dependent on fresh water supply.
There is a global shortage of drinking water. A person might wonder how this can be if seventy percent of the earth’s surface is covered by water. Most of the Earth’s water is unsuitable for human consuption. Ocean water is salt water, which makes up 97.5% of all water on the planet. Freshwater is only 3.5% of all the water on Earth. Drinking water is sourced from bodies of freshwater.
According to the U.S. Geological Survey, 60% of human body is composed of water and 70% of the brain is made up of water. Every day, we need to drink about 2.4 liters of water to replace the water lost in our daily activities. We do have enough water on the earth but we don’t have enough freshwater supply. The earth is covered by 70% of water but only 1% of that is freshwate...
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.