Leidsid 33 sarnast õppematerjali, mis on seotud failiga "Problems of the planet". Need materjalid aitavad sul teemat sügavamalt mõista.
lack, planet, lose, animals, cause, land, clean, drinking, overpopulation, changes, homes, drought, forest, effect, trees, room, cattle, paper, habitat, close, extinction, beaches, live, allergies, famine, crops, hunger, polar, makes, levels, rise, holes, ozone, layer, chemicals, dangerous, skin, cancer, traditions, puts, pressure, earthquakes, tired· Factories produce sulphur the Earth without ozone layer Depletion of natural resources · Misusage of natural · Loss of luxurity · Using renewable resources resources · Big changes in our life · Recycling re-usable · Growth of population materials · Using nuclear energy, · Using wind, sunlight,
I'd like to present the main issues of our planet and today i'll name 5 of them. These are air pollution, water pollution, endangered animals, deforestation and rubbish. Air pollution Firstly, lets talk about air pollution, which endangeres our life in cities and also the forests near by. Cars and factories blow poisoned gas in the air and it mixes with the oxygen, so the air that we breathe, becomes dangerous to our health. The ozone layer around the Earth, there is a special type of oxygen called ,,ozone"
ENVIRONMENTAL PROBLEMS Our environment is constantly changing. However, as our environment changes, so does the need to become increasingly aware of the problems that surround it. With a massive influx of natural disasters people need to be aware of what types of environmental problems our planet is facing. Current environmental problems make us vulnerable to disasters and tragedies, now and in the future. Unless we address the various issues seriously we are surely doomed for disaster. Current environmental problems require urgent attention. 1. Pollution: Pollution of air, water and soil require millions of years to recoup. Industry and motor vehicle exhaust are the number one pollutants. Heavy metals, nitrates and plastic are toxins responsible for pollution
Acid rain The term acid rain refers to what scientists call acid deposition. It is caused by airborne acidic pollutants and has highly destructive results. Scientists first discovered acid rain in 1852, when the English chemist Robert Agnus invented the term. From then until now, acid rain has been an issue of intense debate among scientists and policy makers. Acid rain, one of the most important environmental problems of all, cannot be seen. The invisible gases that cause acid rain usually come from automobiles or coal-burning power plants. Acid rain moves easily, affecting locations far beyond those that let out the pollution. As a result, this global pollution issue causes great debates between countries that fight over polluting each other's environments. For years, science studied the true causes of acid rain. Some scientists concluded that human production was primarily responsible, while others cited natural causes as well. Recently, more
Global Warming One of the biggest issues our planet and its inhabitants are facing nowadays is global warming. Global warming, also often referred to as the greenhouse effect, has not always been a problem. However, over the last centuries, since the Industrial Revolution things have changed. Polar regions are melting, species are dying, climate zones are shifting, migration patterns for animals such as polar bears and birds are being disrupted our world as we know it is changing. Some scientists believe that the climate will reach a tipping point, a point at which even a tiny additional increase would throw the system into violent change. We started doing harmful things and only now do we realize what we have done and what we are doing. At this current rate by the middle of next century the Earth's temperature may rise a predicted from 2 to 6 degrees Celsius
During the summer the sun shines almost 24 hours a day. Summer are usually warm. Average summer temperatures range from 3° to 16°C. TaigaTaiga is the Russian word for forest and is the largest biome in the world. It stretches over Eurasia and North America. The taiga is located near the top of the world, just below the tundra biome. The winters in the taiga are very cold with only snowfall. The summers are warm, rainy, and humid. Some of the animals in the taiga hibernate in the winter, some fly south if they can, while some just cooperate with the environment. GrasslandsGrassland biomes can be found in the middle latitudes. They can have either moist continental climates or dry subtropical climates. There are two different types of grasslands; tall-grass, which are humid and very wet, and short-grass, which are dry, with hotter summers and colder winters than the tall-grass prairie
Learn more about converting energy units in the Units of Measurement section. NONRENEWABLE ENERGY Nonrenewable energy sources come out of the ground as liquids, gases and solids. Right now, crude oil (petroleum) is the only naturally liquid commercial fossil fuel. Natural gas and propane are normally gases, and coal is a solid. Coal, petroleum, natural gas, and propane are all considered fossil fuels because they formed from the buried remains of plants and animals that lived millions of years ago. Uranium ore, a solid, is mined and converted to a fuel. Uranium is not a fossil fuel. These energy sources are considered nonrenewable because they can not be replenished (made again) in a short period of time. Renewable energy sources can be replenished naturally in a short period of time. Picture 4.1. Non-renewable energy SIGNFICANT EVENTS IN THE HISTORY OF ENERGY BY FUEL Pre-1885
The coat of arms features a kangaroo and an emu (the national animals of Australia), golden wattle (the national floral emblem), a shield with the coats of arms of the six states of Australia and a star for all states and territories. Australia's national anthem is "Advance Australia Fair", which replaced "God Save The Queen" in 1984. the unofficial anthem is "Waltzing Matilda". As said before Australias national animals are kangaroos and emus. Often coalas are mentioned too, its floral emblem is the golden wattle and its national colours are the colours of its flag red, white and blue. Head of state Head of state is Queen Elizabeth II, who is queen of United Kingdom and also queen is Australia. In practice, Governor General performs her functions in queen's absence. Since 1989 Bill Hayden has been the Governor General Government
But why is smoking so harmful? Cigarettes have tar in them which contains many chemicals. These deposit in the lungs and can get into the blood vessels and are carried to other parts of the body. Cigarette smoke contains over 4,000 chemicals, including over 50 known carcinogens (causes of cancer) and other poisons. In addition to different kinds of cancer (mouth, nose, throat, larynx, gullet, pancreas, bladder, cervix, blood, and kidney) it also may cause heart diseases, rheumatoid arthritis, fasten your ageing and have impact on your fertility. There are also other conditions where smoking often causes worse symptoms. For example: asthma, flu, chest infections, tuberculosis, chronic rhinitis, diabetic retinopathy, hyperthyroidism, multiple sclerosis, optic neuritis, and Crohn's disease. What makes matters worse is the fact that smoking doesn't harm only the smokers but also people around them. Those people are called passive smokers.
...............................................................................................3 Relief...............................................................................................................................4 Climate & Time Zones....................................................................................................5 Plants...............................................................................................................................5 Animals...........................................................................................................................6 Population.......................................................................................................................6 The Native Australians....................................................................................................6 The Biggest cities..............................................................................................
the Senate (77 members) and the House of Representatives(148 members). Australia's Flag and Coat of Arms. Australia's flag has a Brittish flag, five stars that represent the constellation Southern Cross and a large star for the country's states and territories. The coat of arms features a kangaroo and an emu, golden whattle blossoms, a shield with the coats of arms of the six states of Australia and a star for the states and territories. Landforms Only 5% of the land is above 600 meters. Most of the land is empty. Most of the people live in the south and in east. 2/3 of Australia is a desert with hills and big saltlakes. The biggest deserts are the Great Sandy Desert, the Gibson Desert, the Simpson Desert, The Great Victoria Desert. The biggest mountain ranges are the Great Divining Range, the Australian Alps, the Blue Mountains and the New England Range. The outback is flat and hot centre of Australia. The nearest neighbor may be a hundred kilometers away
Formaldehyde Formaldehyde is a colorless, flammable gas at room temperature. It has a pungent, distinct odor and may cause a burning sensation to the eyes, nose, and lungs at high concentrations. Formaldehyde is also known as methanal, methylene oxide, oxymethylene, methylaldehyde, and oxomethane. Formaldehyde can react with many other chemicals, and it will break down into methanol (wood alcohol) and carbon monoxide at very high temperatures. Formaldehyde is naturally produced in very small amounts in our bodies as a part of our normal, everyday metabolism and causes us no harm
If you've ever been sick and had to take medicine, you already know about one kind of drugs. Medicines are legal drugs, meaning doctors are allowed to prescribe them for patients, stores can sell them, and people are allowed to buy them. But it's not legal, or safe, for people to use these medicines any way they want. Cigarettes and Alcohol Cigarettes and alcohol are two other kinds of legal drugs. (In Estonia, adults 18 can buy cigarettes and alcohol.) But smoking and excessive drinking are not healthy for adults and off limits for kids. Nicotine is the drug in tobacco leaves. Whether someone smokes, chews, or sniffs tobacco, he or she is delivering nicotine to the brain. Each cigarette contains about 10 milligrams of nicotine. Nicotine is what keeps people smoking despite its harmful effects. Because the smoker inhales only some of the smoke from a cigarette and not all of each puff is absorbed in the lungs, a smoker gets about 1 to 2 milligrams of the drug from each cigarette
I like to hope that even students of poor grades yet much promise might thereby get a chance to excel, as would very poor or otherwise handicapped ones. With the grades I received in high school, I did manage to get accepted by the University of Washington in 1980. But today there is no way I would've made the cut, thanks to increased competition. Yet I am one of many who could justify poor grades; in my case they had to do with factors other than lack of intelligence or studious nature. Balance and timing are keys to education. Our minds work differently while engaged in various tasks, such as in chess, mathematics, paint, or writing. Each pursuit must be given ample time for the experience to be memorable, yet not eat too much time. I hear of some children who watch excessive television, or who never do any school homework, or are technical wizards yet know nothing of getting their hands dirty outside playing
their lives because they had to pay high taxes. In 1773, the 'Boston Tea Party' took place and it made the British mad, so in 1775 the War of Independence started. The Americans were led by George Washington who in 1788 became the country's first president. On the 4th of July, 1776 the Declaration of Independence was written and that day is now celebrated as the Day of Independence. The war ended in 1788 and during the time following it, the Americans bought large pieces of land from foreign countries to themselves, creating a big country. By 1860 America was a big country but there was a big difference between the free North and the slavery South. The biggest problem was the issue of slaves and due to that the Civil War broke out in 1861. President Abraham Lincoln tried hard to unite the country again. Though both sides were strong, the North had more men, more factories and stronger leaders. In 1865 the South accepted the loss
Topic Australia Tallinn English College 2006 Australia 1 . Introduction The name Australia is derived from the Latin Australis, meaning of the south. In land area, Australia is the sixth largest nation, its territory is 7,686,850 sq km and its population reaches today over 20,5 million people. It is the only nation to govern an entire continent and its outlying islands. Australia's capital is Canberra, the only city with its own territory. It was built in the early 1900s just to be the capital. The official language is English and the official name of Australia is the Commonwealth of Australia.
Let us not delude ourselves: our work ethics leave a lot to be desired. We prefer the comfort of guaranteed jobs to the adventure of deciding our own future. We prefer others to establish the company so that we come in and cry racism when they refuse to hire us. Why can’t we establish the company, let others come in and cry racism for us not hiring them? This book is not about separatism. Being a Capitalist Nigger does not involve asking for a separate land area for Black people; it does not involve asking all Caucasians to get out of Africa; it does not involve asking others to stop doing business in our neighbourhoods. It is not about calling people names. It is not about taking up arms to slaughter innocent people. However, if we agree to the Biblical teaching that all men are created equal, then it behoves us to understand that being a Capitalist Nigger means
Nordic invaders to be united in the 9th century. The Vikings first raided England to plunder it, then in the days of Alfred of Wessex. They began to win wide lands `to plow and rule'. In the 10 th century England fell under Danish rule with King Canute finally managing to unite the Anglo-Saxons and Danes at the beginning of the 11 th century. After defeating the Anglo-Saxon king Harold at the battle of Hastings in 1066, William of Normandy introduced the Norman feudal system, with land in return for the continued support, and French remained the language of the upper classes and administration until the 14 th century. The origins of Parliament are to be found in the region of John's successor, Henry III. It was a meeting of the king and his barons and servants at which various administrative and financial problems were discussed. In order to make it easier to put the decisions taken into practice, each
2. named characteristic; named environmental factor; (mark first answer only) 2 [2] 3. 1 ref to operon; 2 normally repressor substance bound to operator; 3 prevents RNA polymerase binding (at promoter) / prevents transcription; 4 lactose binds to repressor; 5 changes shape of protein molecule; 6 unable to bind (to operator); 7 RNA polymerase binds (at promoter) / transcription occurs / genes switched on; 8 AVP; e.g. production of lactose permease / production of beta- galactosidase; max 5 [5] 4. a change in the genetic material; unpredictable / AW;
Climate Canada's climate varies wildly based on geography, from perma-frost in the north to four distinct seasons towards the equator. In this region the temperature can climb up to 35 degrees Celsius in the summer and descend to a chilly -25 degrees Celsius during winter. Canada's climate and environment are one of the main reasons that Canada is such a succesful country. The blend of natural resources and climate sustains us. The seasons dictate the look of the land: according to whether the natural environment is in a state of dormancy or growth. Canada's climate is characterized by its diversity, as temperature and precipitation differ depending on where you are and what time of year it is. Other than the North where it's above freezing for only a few months a year, most Canadian cities are within 300 km of the southern border, where mild springs, hot summers and pleasantly crisp autumns are common during the majority of the year.
extinct because of hunting. Now they exist only in protected areas. In the western areas live elk, deer, bighorn sheep, mountain goats and a small number of brown bears. The Kodiak bear, the largest carnivore in North America, is found in Alaska. 7 History The first people to live in North America came from Asia between 10,000 and 30,000 years ago. At that time, North America and Asia were connected by a land bridge. Eventually North America became populated by many different tribes of people. They fished, and where soil permitted, planted crops and farmed the land. After the native people came the Vikings. First they discovered Greenland and after a few years they found America. The next one to arrive in America was Christopher Columbus in 1492. He wasn't actually looking for America. He was looking for a shorter route to the Far East, where he would find valuable silks and spices
service. 1973, American utilities buy 41 nuclear power plants. January, 1983 President Reagan signs the Nuclear Waste Policy Act. Hydro power was surpassed by nuclear power in total electrical generation in 1984. In the unit 4 reactor of the Chernobyl Nuclear plant were two explosions on April 26, 1986. This disaster exposed millions of people to radioactive isotopes. It has been linked many forms of cancer in natives of eastern Europe and Russia, as well as destroying animals and plants. December 1993, the total number of nuclear power plants in the United States is 109, collectively producing 610 billion kWhs of electricity. Nuclear power today Nuclear power is the world's largest source of emission-free energy. Nuclear power plants produce no controlled air pollutants, such as sulphur and particulates, or greenhouse gases. The use of nuclear power in place of other energy sources helps to keep the air clean, preserve the Earth's
The capital of Canada is Ottawa. Other large cities are Montreal, Toronto, Vancouver, Winnipeg and Quebec. 2. Geographical position Canada is a huge country in the continent of North America. It is bordered with the Atlantic Ocean in the east, the Pacific Ocean in the west, the United States of America in the south and the Arctic Ocean in the north. Canada is a vast country, with a territory of 3.8 million square miles of land and fresh water it is the second biggest country in the world after Russia. Canada covers most of the northern part of North America. Canada has over 151,480 miles of coastline. Most of Canada's human population lives along its southern border. 3. Relief Canada's geography is very diverse. It has huge lakes, evergreen forests, prairies, meadows and beautiful mountains
night they return to an eastward(ida suunaline, ida poole) orientation. This motion(liikumine, esildis) is performed by motor cells in the pulvinus, a flexible segment(segment, lõik ; segmenteerima, tükeldama) of the stem just below the bud. As the bud stage ends, the stem(tüvi) stiffens(kangestuma, jäigastuma) and the blooming stage is reached. Sunflowers in the blooming stage are not heliotropic anymore. The stem has frozen, typically in an eastward orientation. The stem and leaves lose their green color. The wild sunflower typically does not turn toward the sun; its flowering heads may face many directions when mature. However, the leaves typically exhibit some heliotropism. Cultivation and uses A sunflower farm near Mysore, India. Sunflower heads solds as snacks in China. Sunflowers are native(pärit) to the Americas. The earliest known examples of a fully domesticated sunflower were found at the Olmec site of San Andrés dating some time before 2500 B.C
Large scale wind farms are typically connected to the local electric power transmission network, with smaller turbines being used to provide electricity to isolated locations. Utility companies increasingly buy back surplus electricity produced by small domestic turbines. Wind energy as a power source is favoured by many environmentalists as an alternative to fossil fuels, as it is plentiful, renewable, widely distributed, clean, and produces lower greenhouse gas emissions, although the construction of wind farms is not universally welcomed due to their visual impact and other effects on the environment. The intermittency of wind seldom creates problems when using wind power to supply a low proportion of total demand. Where wind is to be used for a moderate fraction of demand, additional costs for compensation of intermittency are considered to be modest. Annual generation
themselves to one or two slices. Eating fat The majority of the students eat margarine. Four students prefer butter, and another four eat neither. Conclusion It is noticeable that the eating habits of schoolleavers of Freedonian Secondary School are not very healthy. Moreover, there are no students who have both breakfast and school lunch, eat more than four slices of brown bread per day, and avoid fat. Since the beginning of human life, enormous changes around us have taken us to a path of scientific progress, which in turn has benefited mankind in a number of ways. In every era, man has innovated many things in order to cater for his rising needs. Undoubtedly, the emergence of necessities has always led man to creative exploration. As time passed, primitive man realized other needs arising around him. After catering to his fundamental needs of food and shelter, man felt the need for acquiring goods which he could not produce himself
3. Relief The USA is situated in the central part of the North American continent. Its western coast is washed by the Pacific Ocean and its eastern coast is washed by the Atlantic Ocean and in the south its coast is washed by the Gulf of Mexico. The coastline is even. There are no big islands belonging to the USA except the Hawaiian Islands which lie halfway the continents of America and Asia. The biggest peninsulas are the Florida Peninsula and Alaska. 4. Land Regions Mountains The Appalachian Mountains are a vast system of North American mountains, partly in Canada, but mostly in the United States, forming a zone, from 100 to 300 miles wide, running from the island of Newfoundland some 150 miles south-westward to central Alabama in the United States. The Rocky Mountains, often called the Rockies, are a broad mountain range in western North America. The Rocky Mountains stretch more than 4800 km. The Rocky Mountain System within
distinguished - successful and respected by many people District- an area of a town or country Draped- to put something made of cloth over or around something Draughts- a game for two people, played on a board with black and white squares using 24 round pieces. The American word is checkers Drill- a way of teaching people something by making them repeat it several times Ecological- relating to the environment and the way that plants, animals, and humans live together and affect each other Energy usage- Excavation- the process of digging in the ground to find things from the past Flannel coat- Forgery- the crime of making copies of valuable documents or works of art in order to make money by selling them Fowl- a bird that is kept on a farm for its eggs and meat, for example a chicken or a duck Fully-equipped- Fully-furnished- Genuine- real, rather than pretended or false Glass front-
from each state and 2 from each territory. The executive power in Australia is in the hands of the Prime Minister. Today the Prime Minister is John Howard. History. The first inhabitants in Australia are the Aborigines who came there about 60000 years ago. The first known Europeans to arrive in Australia were the Dutch. William Jaanzsoon tried to reach the East Indies, but landed in western Australia in 1611. The Dutch gave a poor account of Australia considering it to be and arid land inhabited by fierce savages. Abel Tasman was also a Dutch sailor and he discovered Tasmania. Captain James Cook discovered the fertile eastern coast in 1770 and had a more favourable outlook. He explored the coast and named some most important features, such as Botany Bay, for instance. Australia was called Terra Australis Incognita before 1770 and it means `southland'. After the disgraceful loss in the American War of Independence, Britain
START HERE Thinner, Bigger, Faster, Stronger? How to Use This Book FUNDAMENTALS--FIRST AND FOREMOST The Minimum Effective Dose: From Microwaves to Fat-Loss Rules That Change the Rules: Everything Popular Is Wrong GROUND ZERO--GETTING STARTED AND SWARAJ The Harajuku Moment: The Decision to Become a Complete Human Elusive Bodyfat: Where Are You Really? From Photos to Fear: Making Failure Impossible SUBTRACTING FAT BASICS The Slow-Carb Diet I: How to Lose 20 Pounds in 30 Days Without Exercise The Slow-Carb Diet II: The Finer Points and Common Questions Damage Control: Preventing Fat Gain When You Binge The Four Horsemen of Fat-Loss: PAGG ADVANCED Ice Age: Mastering Temperature to Manipulate Weight The Glucose Switch: Beautiful Number 100 The Last Mile: Losing the Final 510 Pounds ADDING MUSCLE Building the Perfect Posterior (or Losing 100+ Pounds) Six-Minute Abs: Two Exercises That Actually Work
public disquiet and interference with recreational activities such as bathing, boating, angling and diving. Hotel and restaurant owners, and others who gain their livelihood from the tourist trade can also be affected. The disturbance to coastal areas and to recreational pursuits from a single spill is comparatively short-lived and any effect on tourism is largely a question of restoring public confidence once clean-up is completed. Industries that rely on a clean supply of seawater for their normal operations can be adversely affected by oil spills. If substantial quantities of floating or sub-surface oil are drawn through intakes, contamination of the condenser tubes may result, requiring a reduction in output or total shutdown whilst cleaning is carried out. Biological effects of oil Simply, the effects of oil on marine life, are caused by either the physical nature of the
undergo as dramatic shifts in rate of metabo- solid component in muscle. The functions of lism as muscle cells. The ability of living proteins are quite varied. Muscle proteins are skeletal muscle to undergo relatively large involved in maintaining the structure and intracellular changes also influences its organization of the muscle and muscle cells response to the drastic alterations that occur (the role of highly insoluble stromal pro- during the first few hours following exsan- teins). They are also important in the contrac- guination. Thus the organization, structure, tile process
Education is a very important part in the life of British youth. One can't become an independent person without it. When time comes to enter a college a young Englishman chooses one far away from home. It is a necessary part of becoming adult. During the last 30 years there were a lot of different trends in youth movements. All of them were characterized by their own philosophy, way of life, style of dressing. Each tendency was born by the influence of economic and political changes in the society. Those trends are known as the "hippies" the "punks" the "rockers". But certainly there are different traditional youth organizations in Great Britain. Among them -- the Scout Association, the Girl Guides Association, the National Union of Students, the Youth Club. The latter offers, for example, a wide range of sporting and social activities. The National Union of Students was founded in 1922. It operates through local branches in colleges and universities
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