We need water to live on this planet otherwise life on Earth wouldn't be possible. Many countries suffer from water shortages. There is no fresh water for people usage. It's actually a major problem in the world but what can we do to decrease this? Firstly, people need to realise that there are many other people in the world who does not have accessibility to water. We can decrease it by not wasting water on pointless things for example long showers and watering flowers outside the house. By doing this we will economize water and it may be possible for other people to use fresh water as well. Secondly, it is really important to keep the water fresh and clean but many factories let their sewage into the groundwater which can cause a pollution and the lack of fresh water around that area. We can prevent this from not le...
Water pollution Water pollution is the contamination of water bodies such as lakes, rivers, oceans, and groundwater caused by human activities, which can be harmful to organisms and plants and for all of us. First, we have to talk about the causes of water pollution. Domestic households, industrial and agricultural practices produce wastewater that can cause pollution of many lakes and rivers. Industry is a huge source of water pollution, it produces pollutants that are extremely harmful to people and the environment. Dumping of litter in the sea can also cause huge problems. Different items take different lengths of time to degrade in water. Oceans are polluted by oil on a daily basis from oil spills, everyday shipping and dumping. Secondly, it is very significant to know about dangers of water pollution. Virtually all types of water pollution are harmful to the health of humans and ani...
Water Purification What is water purification? Water purification generally means freeing water from any kind of impurity it contains, such as contaminants or micro organisms. Water purification is not a very one-sided process; the purification process contains many steps. The steps that need to be progressed depend on the kind of impurities that are found in the water. This can differ very much for different types of water. In which ways is polluted water treated? Settling Before the purification process begins some contaminants, such as oil, can be settled in a settling tank. They can then be removed easily, after they have reached the bottom of the tank. Removal of dangerous microorganisms Often polluted water has to be freed from microorganisms. The water is than disinfected, usually by means of chlorination. Removal of dissolved solids Microrganisms are not only a threat to water; they can also be an advantage when it comes to...
I'm going to talk about water consumption and about the importance of the water. I've chosen this topic because water is our most important resource and I'm also very worried about how little there is left of it. At the moment a bottle of water costs less than an euro, but within the next 10 years the very same bottle may cost 5 to 10 euros, if we don't conserve and protect our fresh water supply. The thing is, we have enough sea water, but it's the freshwater we lack of. Water covers over 70% of the Earth, but just 3% of it is fresh and less than 1% is the water that is available and we can drink. The amount of freshwater is rapidly decreasing. The water we have now is all we will ever have, we cannot produce anymore. Moving on to the importance of water. There wouldn't be any life on Earth without water. Water cools the Earth and all plants, animals and humans need clean water to survive. To sum up,...
There are positive and negative aspects of each source, but which source of energy is best? My opinion is that the best source of energy is water and I'll bring up some facts why do I think so. Hydroelectric power is currently the world's largest renewable source of electricity. It accounts for six percent of the worldwide energy supply or about fifteen percent of the world's electricity. Water has been found to be a major source of energy. Water power is utilized at present mainly as hydro-electricity. It is produced from moving water and from falls with the help of turbines and dynamos. Hydro-electricity has acquired great significance as a source of energy in the country in the present times and is being put to different uses. The following are the advan...
The oil spill of the Exxon Valdez showed many around the world just how horrible the effects of water pollution could be. However, even the Exxon Valdez spill barely touched the surface of the problem of water pollution. The ship spilt only 5% of the oil spilt that year, and oil is just one of many pollutants that people dump into the water every year. Every year, 14 billions pounds of sewage, sludge, and garbage are dumped into the world's oceans. 19 trillion gallons of waste also enter the water annually. The problem of ocean pollution affects every nation around the world. This is especially true because water is able to transport pollution from one location to another. For many years, chemicals were dumped into bodies of water without concern. While many countries have now banned such behavior, it continues to go on today. As the world has industrialized and its popul...
Water Imagine, it is a hot summer’s day, you are walking down the street, the sun is burning your skin, you have been walking quite a while now and suddenly, you feel you are thirsty. So what would you do …. Probably you go to the nearest store down the street and buy a bottle of water; a bubbly water, a vitamin water, a water from the fridge, there is so many variety of waters and still you have something to complain about how the water is to expensive how the day is too hot, how the water is too cold . And now imagine… imagine the people, who live in African deserts, imagine feeling thirsty and not having any water at all, not around you, not anywhere. People who live there they have to make long journeys or treks over rough and barren land to get water and when they finally reach to that hole in the ground, then that water there isn’t even clean. It takes so much time and energy, just to get a glass water or in the Africans...
It's based on an article by David Krantz and Brad Kifferstein. I read it through and now I'm trying to give the conclusion of the article as well as express my own opinion. 70 percent of planet Earth's surface contain water. Water is the beginning of life and vital natural resource. It's vital for every living organism. That's why we have to keep the water bodies clean and stop polluting our fresh water. It's hard to believe, but planet Earth is in great danger. People can't see the whole picture. They are being indifferent to the future. Everyone thinks about themselves and tries to find a better and easier way to get rid of garbage and waste. Money is everything for them. Money talks and nobody cares about giving a dollar to save the nature. Usually a person thinks that what difference can he make. But if everybody think so, it's obvious that nothing happens. We...
Säästev veevarude süsteemid on kavandatud ja juhitud, selleks et kõige parem teenindada inimestele, kes elavad praegu ja tulevikus. The actions that we as a society take now to satisfy our own needs and desires should depend not only on what those actions will do for us but also on how they will affect our descendants. Meetmeid, et me nagu ühiskond võtame ette praegu selleks, et rahuldada oma vajadusi ja soove peaks sõltuma mitte ainult sellest, millised need meetmed teevad meie jaoks, vaid ka kuidas need mõjutavad meie järeltulijad. This consideration of the longterm impacts on future generations of actions taken now is the essence of sustainable development. Seda arvesse pikaajalise mõju tulevaste põlvkondade võetud meetmed on praegu sisuliselt säästvat arengut. While the word `sustainability' can mean different thin...
There are several sources of water pollution ranging from sewage and fertilizers to soil erosion. The impact of water pollution on wildlife and their natural habitat can be immense. While it may seem like preventing water pollution can be an overwhelming subject to tackle, there are also a number of things that the average person can do to help stop water pollution. Tips on Preventing Water Pollution The best solution for water pollution is prevention. While pollution that has already occurred is a current threat to all life on Earth, attempts to clean it up may cause even more harm.There are several steps that can be taken to help prevent water pollution from getting worse. Keep Machinery in Good Working Order The oil used to lubricate engines in all types of machines needs to be changed regularly. When the oil is changed, it presents a number of environm...
WATER POLLUTION The causes of water pollution sewage and wastewater; marine dumping; industrial waste; oil pollution; Sewage and wastewater contains urine and laundry waste pollute the environment diseases TREATMENT water treatment plants Stop using toxic household products! Marine dumping garbage-> the oxygen in the water could be depleted bottles, plastics, bags-> can suffocate or choke sea animals TREATMENT cleaning water Do not throw anything into water! Industrial waste toxic chemicals causes also air pollution TREATMENT fit filters to chimneys treatment plants Oil pollution spilled oil spoil drinking water Birds' feathers-> stuck with oil-> drown can blind an animal TREATMENT cleaning water with skimmers Being more careful when tankers trantsport oil! How to prevent water pollution? use water wisely; be careful about what you throw down your sink; environmentally household products; don't throw rubbish anyhow...
⦿ Surface Water Pollution - Most common type, you can visually see the pollution floating (plastic containers or oil and gasoline spills). ⦿ Ground Water Pollution – This becomes more relevant as it affects our drinking water. It become infected by toxic chemicals. ⦿ Microbial Pollution – Found in the countries who don’t have the facilities to cure the water so the bacteria and viruses grow in the water. The people have no other way of getting water so they are forced to drink it. WHAT CAUSES WATER POLLUTION? ⦿ Wastewater ⦿ Marine dumping ⦿ Industrian waste ⦿ Radioactive waste ⦿ Oli pollution ⦿ Underground storage ⦿ Global warming WHY IS IT A PROBLEM? ⦿ It causes worldwide disasters and deaths. ⦿ It may not damage our health immediately but can be harmful after long time. ⦿ Indus...
But our planet is threaten by environmental problems. Even a small country like Estonia can make difference. Our capital city is fighting against air pollution. But people produce much refuse and ways of recycling are getting old. Water pollution is also a problem in Estonia. We have factories that let their waste run into rivers. One of the biggest problems in Estonia is air pollution. Our air is polluted by exhaust fumes, because today we have a lot of cars, buses and other machines. In 2009 we had 407 cars to thousand inhabitants, which is lower than European Union average, but this number is still high. Because cars produce gases that contain carbon dioxide. This carbon dioxide in the air causes global warming, which is the result of the greenhouse effect. Tallinn wants to fight against it by offering public transportati...
It's the only continent except for Antarctica that lies all south of the equator. It is surrounded by the Indian Ocean and the Pacific Ocean; the Gulf of Carpentaria, the Coral Sea, the Tasman Sea, the Australian Bight, the Timor Sea and Shark Bay. The Great Barrier Reef is one of the natural wonders of the modern world. It is located off the northeast coast of Australia. It's the largest coral reef on earth, extending for 2000 kilometres along the coast of Queensland. It consists of more than 600 islands. Most of the islands are uninhabited, but some have been developed as tourists resorts. Scientists estimate that the Reef is more than 30 millions years old and it had it beginning in a tiny animal known as polyp. There are more than 300 varieties of coral, which is a ultimate dream of every shell- collector. There are undersea observations, glass-bottomed boats and water scopes for undersea viewing, as well as skin-diving equipment. The Great Barrier Reef is and ideal place for a sunny holiday. The relief: Australia is an old and low continent with simple relief. Plains cover the greater part of the land. Most of the rocks have turned into sand and there are big sand deserts on the Western Plateau. In the centre of Australia are lowlands which are covered with sedimentary rocks. Deserts cover most of the land in Australia. Most of the deserts lie in the central and north-western part of the country. The deserts in Australia occupy 18% of the continent. The biggest deserts are the Great Victory Desert, the Great Sandy Desert, the Tanami Desert, the Simpson Desert and the Gibson Desert. Although Australia is a low continent, there are a few mountain rangers there, too. The biggest is the Great Dividing Range. It stretches more than 3500 km from the north-easter...
As per the 2001 census, there are twenty seven million- plus cities, with the largest cities being Mumbai, Delhi and Kolkata. English is used extensively in business and administration and has the status of a subsidiary official language; it is also important in education, especially as a medium of higher education. In addition, every state and union territory has its own official languages, and the constitution also recognises in particular 21 "scheduled languages". India's literacy rate is 64.8% (53.7% for females and 75.3% for males).The state of Kerala has the highest literacy rate at 91% while Bihar has the lowest at 47%.The national human sex ratio is 944 females per 1,000 males. According to the World Health Organization, 900,000 Indians die each year from drinking contaminated water and breathing in polluted air.There are about 60 physicians per 100,000 people in India. Bollywood Bollywood is the informal term popularly used for the Hindi-language film industry based in Mumbai, Maharashtra, India. The term is often incorrectly used to refer to the whole of Indian cinema; it is only a part of the total Indian film industry, which includes several regional film industries sorted by language. Bollywood is the largest film producer in India and one of the largest centers of film production in the world. Bollywood films are multi-million dollar productions, with the most expensive productions costing up to 100 crores rupees (roughly USD 20 million). Sets, costumes, special effects, and cinematography were less than world-class up until the mid-to-late 1990s, although with some notable exceptions. Bollywood sold 3.6 bil...
Eesti maaülikool Põllumajandus- ja keskkonnainstituut ANTIQUE GARDEN ORNAMENT: fountains Kadi Mõttus Tartu 2011 Book what I use: Israel, Barbara ,,Antique garden ornament: two centuries of american taste" 256 pages LR tehnikakirjanduse Barbara osak. 21p Israel 712.2 ISR Fountain pros: · Most compelling of garden ornaments · Make viewer think how it works · Beauty · Musical sound · The play of light Compelling mõjuv The idea comes from... ... crops irrigation! Ornamental fountains variations: · Freestanding tazza-form · Shallow · Bowl Shallow - madal Ornamental fountains variations: · The wall-mounted · Semiattached water ensemble · Fountain figure Another ornamental fountain variation: · The grotto Thomas Jefferson (1743 1826) · Plan for a naturalistic grot...
Introduction The literature review will discuss the sustainability aspects of biofuels. Food production will be the main concern as it is the most debated issue, but other aspects, such as land use change and water consumption will be also considered as they are essential aspects in the biofuels sustainability criteria. The review will discuss the viability of biofuels based on the current technologies. Second-generation biofuels are not yet commercially viable and therefore will not be discussed; although they could significantly improve the sustainability of biofuels when they break through to the industrial scale. 2. The scale of biofuels production 2.1. Drivers of biofuels production Lal (2010) stated that "three inter-connected challenges face humankind in the 21st century": food security, climate change, and energy security. The world population is projected to reach 9 billion in 2050, posing more demands on energy, food, and other natural resources. It has been estimated that the world food production needs to double and meat production increase by 85% by 2050 to fulfill projected demand by population (Karp, 2011). In the recent dec...
Eliminating total hardness with a Na+ ion-exchange softener. Reagents 0.1 M hydrochloric acid, 0,025 M and 0,005M trilon-B solution, buffer solution (NH4Cl + NH3∙H2O), indicators methyl red (mr) or methyl orange (mo) and chromogen black ET-00. Apparatus Conical flasks (250 ml, 500 ml), measuring cylinder (25 cm 3), burette (25 cm3), pipettes (100 cm3). Experimental Procedure A Determination of carbonate hardness 1. Rinse the 100 cm3 pipette 2...3 times with a small amount of the test water. Wash the conical flask with distilled water. Pipette 100 cm 3 of the test water and transfer it into the conical flask, add 3...4 drops of indicator mo or mr. 2. Prepare the burette – remove any air bubbles from the nozzle and fill with 0.1 M hydrochloric acid till zero (The lower meniscus has to coincide with the scales 0-notation). 3. Titrate with a 0.1 M hydrochloric acid solution, while swirling the...
Toatüübid- SGL, TWIN, DBL, SUI, JUN SUI, INVA, ADJ, CON,TRIP, DBL DBL (2xlaivoodi) 2. Vooditüübid- crib, baby bed/baby cot, french bed/couch (diivan),bank bed (nari), LV (lisavoodi) 3. Vaated- parital ov-osaline/peaaegu olemata ov, ov- ookeani vaade, ocean front-ookean otse ees,beach front- rand otse ees, city view-linnavaade, mountain view- mägede vaade, water view- vaade veekogule, island view-vaade saarele, pool view- vaade basseinile. Garden view-vaade aeda. 4. Ametid vastuvõtus-tegema sisse-ja väljaregistreerimisi, sobitama inimesi tubadesse, arveldama, tegema pakkumisi, rääkima reisibüroodega, lahendama klientide probleeme, suhtlema klientidega, andma toateenijatele infot. 5. Mõisted- RO-ainult tuba, ei sööke; BB-majutus+hommikusöök;HB- majutus+2toidukorda;AL-kõik hinnas;FB- majutus+3toidukorda;UAL-kõik vägagi hinnas; a la car...
Inputs and outputs of environmental policymaking. Sisendid: Vajadused/nõudmised (erinevad huvid, vastandlikud nõudmised; valitsused, ettevõtted, kliendid, kohalikud ühingud, MTÜ-d, investorid, töötajad) Toetus (vähemalt minimaalne maksumaksjate toetus, lojaalsus- jälgimine, seadusandluse mõju valimiste tulemustele) Ressursid- raha ja informatsioon (nii teaduslik kui tehniline), looduslikud ressursid Avalik arvamus Meedia kajastus Valimiste tulemused Teadmised/info Millist infot on poliitika kujundajatel vaja teada? Milline on probleemi olemus, raskusaste ja ruumiline ulatus? Millised faktorid on probleemi põhjustajateks? 1 Kui probleemile ei reageerita, kuidas siis probleem aja jooksul muutub? Kas see probleem probleem...
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