than the tall-grass prairie. In the winter, grassland temperatures can be as low as -40° F, and in the summer it can be as high 70° F. There are two real seasons: a growing season and a dormant season. Deciduos forest The average annual temperature in a deciduous forest is 50° F. The average rainfall is 30 to 60 inches a year. In deciduous forests there are five different zones. The deciduous forest has four distinct seasons, spring, summer, autumn, and winter. In the autumn the leaves change color. During the winter months the trees lose their leaves. The animals adapt to the climate by hibernating in the winter and living off the land in the other three seasons. DesertDeserts cover about one fifth of the Earth's land surface. Deserts temperature ranges from 20 to 25° C. The extreme maximum temperature ranges from 43.5 to 49°. Hot and Dry Deserts usually have very little rainfall and concentrated rainfall in short periods between long rainless periods.
Temperate grasslands have warm, humid summers with an average temperature of 18° C and cool, dry winters with an average temperature of 10° C. Most of the rain falls as convection rain in the summer and sometimes frost and snow may occur in the winter. 6. What is the role of wildfires in the temperate grassland plants’ lifecycle? Wildfires play a very important role. They allow the grasslands to be open and free of trees and shrubs. Any seedling of a tree that appears is killed off by the intense heat. If the fire does not clear out the seedlings, the grasslands would become a shrubland changing forever. Remarkably, the plants in the grasslands have adapted to the wildfires that come through, and actually need them to keep healthy and grow new vegetation in the spring 7. How are plants adapted to life in temperate grassland? (vt. ka õpik lk 61)
Different types of forests and their forms of usage TARTU 2010 Forest A forest (also called a wood, woodland, wold, weald, holt, frith) is an area with a high density of trees. Forests cover approximately 30% of land and 9.4% of all the planet earth. They are also responsible for regulating our planet's climate and act as large purifiers of airs, by absorbing carbon dioxide, and giving out oxygen. Different types of forests Forests are divided into following main types: o Tropical forest o Subtropical forest o Plantations o Boreal forest o Temperate forest o Seasonal or monsoon forest Tropical and Subtropical Forests
humid. They are also very short with about 50 to 100 frost free days. The total precipitation in a year is 300 - 850 mm 4. Connect the climate diagram and biome. Temperate grassland- vähe vihma, temp 20 ; Taiga- 20-15°C, kesk vihm. Rainforest: VÄGA PALJU VIHMA, temp 4-12 °C. ; Temperate deciduous forest: temp 20, kesk. vihm 5. Describe the soils of the. Temperate deciduous forest: Brown forest soils develop under the trees. Broadleaf trees tend to be nutrient-demanding and their leaves bind the major nutrient bases. The autumn leaf fall provides for an abundant and rich humus which begins to decay rapidly in spring just as the growing season begins. The humus content gives soil horizons a brown colour. Temperate rainforest: This forest has nutrient-rich soil because there is a lot of dead organic matter on the ground. This dead material is being slowly digested by the fungi, insects, and bacteria that live here
Topic Australia Introduction Many people know Australia as the land down under because it is the only continent except for Antarctica that is all on the southern hemisphere. Its name means ,,Southland". The official name of the country is the Commonwealth of Australia. It's capital is Canberra. Australia is the sixth largest country in the world but the smallest continent. Australia has 6 states and 2 territories (New South Wales, Victoria, Tasmania, Queensland, Western Australia , South Australia, The Australian Capital Territory and the Northern Territory).
Australia Fact file: Australia comprises a land area of 7 686 850 square kilometres. Its population is about 21,3 million people. Australia's capital is Canberra. The national language is English. The official name of it is the Commonwealth of Australia. It's divided into six states and two territories: New South Wales, Queensland, South Australia, Western Australia, Tasmania, Victoria, Australian Capital Territory (ACT) and Northern Territory. Symbols:
BLUE VIOLET Karina Kalinina, Aleksandr Zinets, Darja Boitšenko F1-2 Tallinn Health Care College 2016 SCIENTIFIC CLASSIFICATION Kingdom Division Class Order Family Genus Species Plantae Magnoliop Magnoliop Violales Violaceae Viola L. Viola hyta sida – violet sororia Willd. - Common blue violet BLUE VIOLET Stemless herbaceous perennial plant. Native to eastern North America. Self-seeding freely.
......................................................................... Sports............................................................................................. .................................... Culture............................................................................................. .................................. Factfile Australia is the only country in the worlf that fills the whole continent. The continent is also called Australia, if you want to make clear that you are speaking about the country you may call it by its official name: Commonwealth of Australia. Australia is the smallest continent, but one of the largest countries in the world. Its area is about 7,6 million sq kilometers. Its population is about 20,0 million and most of the people live in bigger cities: Sydney (4.2 million), Melbourne (3.7 million), Brisbane (2 million) and in Canberra, Which is also the capital of Australia.
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.
To the north and south of this central mountain range on the main island lie vast stretches of mangrove swamps and coastal river deltas. /1/ Volcanoes and thermal pools are also found in the southeast of other islands. Papua New Guinea offers the greatest variety of terrestrial ecosystems in the South Pacific, including five types of lowland rainforest, 13 types of montane rainforest, five varieties of palm and swamp forest and three different mangrove forests. Two-thirds of the world's species of orchids come from New Guinea. /1/ Birds include 38 species of the bird of paradise, and the megapode and cassowary. Marsupials and mammals include cuscus, tree kangaroos, wallabies, bandicoots, spiny anteaters and, in the coastal waters, the dugong. There are between 170 and 200 species of frog and 450 species of butterfly. /3/ 4 The forests of New Guinea Richer and more diverse in species than their montane counterparts, the lowland
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
MIINA HÄRMA GYMNASIUM Deserts Saudi-Arabia Tartu 2007 Deserts In geography, a desert is a landscape form or region that receives very little precipitation. Generally, deserts are defined as areas that receive an average annual precipitation of less than 250 mm (10 inches). Deserts cover at least one-fourth of the Earth's land surface. Desert biomes can be classified according to several characteristics. There are four major types of deserts: · Hot and dry · Semiarid · Coastal · Cold Location The four major North American deserts of hot and dry deserts are the Chihuahuan, Sonoran, Mojave and Great Basin. Others outside the U.S. include the Southern Asian realm, Neotropical (South and Central America), Ethiopian (Africa) and Australian.
Natural Zones and Flora. There are five distinguishable natural zones in Australia. In the very east there are wet forests (1.) that occupy the space between the Great Dividing Range and the eastern coast. Westward from the Great Dividing Range the wet forests give place to beautiful grasslands with some trees . These grasslands are called the savannas (2.). Farther west the trees disappear and the bushlands (3.) begin. The real desert (4.) occupies the centre of the Western Plateau. In the very southwest there are thin forests of evergreen trees (5.). Most of Australian trees are kinds of eucalyptus trees (or gum trees to Australians) and acacia ( wattle to Australians). Eucalyptus trees are found everywhere in Australia. There are many kinds of them and they greatly differ in size. One kind, the
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; extra detail; e.g. addition / substitution / deletion / frame shift / small part of chromosome / may code for different protein / may code for no protein [2] 5. 1 mark max for general effect of mutations: mutation may give different, amino acid / primary structure; A ref stop codon
of waste disposal. Developed countries are notorious for producing an excessive amount of waste or garbage and dumping their waste in the oceans and, less developed countries. Nuclear waste disposal has tremendous health hazards associated with it. Plastic, fast food, packaging and cheap electronic wastes threaten the well being of humans. FIND OUT 5 WAYS HOW TO MANAGE WASTE. 5. Loss of Biodiversity: Human activity is leading to the extinction of species and habitats and loss of bio- diversity. Eco systems, which took millions of years to perfect, are in danger when any species population is decimating. Another example is the destruction of coral reefs in the various oceans, which support the rich marine life. FIND OUT 5 WAYS HOW TO HALT THE LOSS OF BIODIVERSITY 6. Deforestation: Our forests produce fresh oxygen and help in regulating temperature and rainfall. At
When water saturates the upper surface, bogs and ponds may form, providing moisture for plants, and breeding thousands of insects that attract many migrating birds. Animals are adapted to handle cold winters and to breed and raise young quickly in the very short and cool summers. Some animals have grown thick fur that turns white in the winter. Others find a place to hibernate during the winter months. Many plants have dark red leaves that allow the plant to absorb more heat from the sun in the cold tundra climate. All of the plants are adapted to sweeping winds and disturbances of the soil. Many plants grow in a low, tight clump - this growth habit helps protect them from the cold and snow. They can carry out photosynthesis at low temperatures and low light intensities. The growing season is short and most plants reproduce by budding and division rather than sexually by flowering. There are no
smaller. Männipuistud on valdavad, kuusepuistu ala (18%) ja kaske (13%) leidub vähem. The share of oak forests (5%) is relatively big, especially on Saaremaa Island. Tammemetsade osakaal (5%) on suhteliselt suur, eriti Saaremaal. The most freguently occuring degree of stocking index is 0,5 ...0,7. The quality class is III ...IV. Kõige sagedasem täius on 0,5...0,7. Boniteediklass on III...IV. The density of undergrowth is very varied.: juniper, hazel, fly honeysuckle being the most common species. Alusmetsa tihedus on väga erinev: kõige levinumad liigid on kadakas, sarapuu, harilik kuslapuu. The ground vegetation varies according to the light conditions and geographical lacation. Alustaimestik muutub vastavalt valgustingimustele ja geograafilisele asukohale. The characteristic species are: red grass, heath false brome, mountain melick, blue moor grass, blood-red geranium, dropwort, hepatica. Iseloomulikud liigid on
Also are finded in tempered areas of South America. Climate: The average temperature in temperate forests is 50° F. Summers are mild, and average about 70° F, while winter temperatures are often well blow freezing. The average yearly precipitation is 30-60 inches. This precipitation falls throughout the year, but in the winter it falls as snow. There are four seasons in this biome, with warm summers and cold winters, often snowy. In autumn, the leaves change color and fall from the trees. The leaves decay on the forest floor, so the soil is very rich. Because of this, and because of the long growing season, many deciduous forests have been cut down for farming purposes. Plants: Trees of this biome include hardwoods such as maple, oak, hickory, and beech. There are often some evergreens, such as hemlock, spruce, and fir growing amongst them. Decidous forests have usually 3-5 layers of plants; Top layer, or canopy: tall deciduous trees.
http://www.bbc.co.uk/nature/programmes/tv/jungle/vjungle.shtml Virtual Jungle worksheet I 1. Structure 1.1. Describe these layers Emergents The canopy trees are tall, but some species grow even taller until they stick right out above the canopy. These are called 'emergents' and can reach almost 90m in height. Up here they don't have to compete with other trees for light, but they are exposed to the high winds that lash the canopy during tropical storms. Emergents are the favourite nest sites of jungle eagles such as the harpy eagle of South America. Canopy Suspended 40m above the ground is the canopy - a belt of tree crowns supported by enormous rainforest tree trunks. This is the most productive and diverse habitat on Earth - perhaps 40% of the world's species spend their lives among its branches. The canopy's function is to photosynthesise
2013): 1. Bacteria a) Heterotrophic bacteria, eg. symbiotic and non - symbiotic N2 fixers, ammonifier, cellulose decomposers, denitrifiers b) Autrotrophic bacteria, eg. nitrosomonas, nitrobacter, sulphur oxidizers, etc; 2. Fungus; 3. Viruses 4. Actinomycetes and stretomyces; 5. Algae eg. BGA, yellow gree algae, golden brown algae. The soil microflora largely depends on the type of soil, temperature, moisture, plant growth, nutrients, pH, and many other factors which may vary between locations but also within a single plot and over very small distances (OECD, 2007). Nevertheless of the quantity of microflora, biomass of all microorganisms living in soil play an important role in the functioning of entire soil ecosystems because their enormous biochemical activity (Barabasz et al. 2002). Soil microflora cycles carbon, nitrogen, phosphorus, and sulfur, plays a role in soil structure
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
The sunflower (Helianthus annuus) is an annual(iga aastane) plant in the family Asteraceae, with a large flower head (inflorescence(õiekobar, õisik, õitseaeg, õidumine)). The stem(tüvi) of the flower can grow up to 3 metres tall, with the flower head reaching 30 cm in diameter. The term "sunflower" is also used to refer(nimetama, viitama, üle andma) to all plants of the genus(perekond, sugu) Helianthus, many of which are perennial(alaline, aastaringne) plants. What is usually called the flower is actually a head (formally(ametlikult) composite(liit-,
Urban Forestry Gene W.Grey Frederick J.Deneke Ants Nokkur Metsandus I Content Introduction Early history History Distribution Composition Popular species Benefits Planting trees Conclusion Introduction Ø An urban forest is a forest or a collection of trees that grow within a city, town or a suburb. Ø Urban forests plays an important role in ecology of human habitats in many ways: they filter air, water, sunlight, provide shelter to animals and recreational area for people. They moderate local climate and slowing wind. History of Urban Forestry Early History Ø Trees have been esthetically important to people since the earliest civilization. Ø
grown on the African oil palm tree. Oil palms are originally from Western Africa, but can flourish wherever heat and rainfall are abundant. Today, palm oil is grown throughout Africa, Asia, North America, and South America, with 85% of all palm oil globally produced and exported from Indonesia and Malaysia; but most of the time not using sustainable measures. The industry is linked to major issues such as deforestation, habitat degradation, climate change, animal cruelty and indigenous rights abuses in the countries where it is produced, as the land and forests must be cleared for the development of the oil palm plantations. According to the World Wildlife Fund, an area the equivalent size of 300 football fields of rainforest is cleared each hour to make way for palm oil production. This large-scale deforestation is pushing many species to extinction, and findings show that if nothing hanges, species like the
deciduous forest). Tropical rainforest South America, Africa (Madagaskar), Asia. Tropical deciduous forest South America, Asia, Australia 3. Compare the climates (tropical rainforest/tropical deciduous forest). Tropical rainforest is wetter than tropical deciduous forest. Both of these biomes have a warm climate all year long. Tropical deciduous forest has a well defined dry and a wet season. During the dry season, the trees in tropical deciduous forest lose their leaves. 4. Using the climate diagram describe the climate of the region (tropical rainforest/tropical deciduous forest). 5. Why are tropical rainforest soils not fertile? Because rapid bacterial decay prevents the accumulation of humus. 6. How do the soils in tropical deciduous forest differ from the soils in tropical rainforest? The soil in tdf has more nutrients, because the leaves fall down and trees grow more sparsely. 7
oxygen to form sulfuric acid, which is strong it ionizes completely to hydrogen ions. H2SO4 2H + SO4-2 Effects pH range Effect 6.59 No effect 6.06.4 Unlikely to be harmful except when carbon dioxide levels are very high (1000 mg I 1) 5.05.9 Not especially harmful except when carbon dioxide levels are high (20 mg I 1) or ferric ions are present 4.54.9 Harmful to the eggs of salmon and trout species (salmonids) and to adult fish when levels of Ca 2, Na and Cl are low 4.04.4 Harmful to adult fish of many types which have not been progressively acclimated to low pH 3.53.9 Lethal to salmonids, although acclimated roach can survive for longer 3.03.4 Most fish are killed within hours at these levels Environmental effects Very obvious environmental effect of acid rain is the loss of fish in acid sensitive lakes and streams. Loads of fishes are not able to survive in acidic water
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
energy for heating and lighting. Picture 2.5. How energy is used in commercial buildings Electricity and natural gas are the most common energy sources used in commercial buildings. Commercial buildings also use another source that you don't usually find used in residential buildings--district energy. When there are many buildings close together, like on a college campus or in a big city, it is sometimes more efficient to have a central heating and cooling plant that distributes steam, hot water, or chilled water to all of the different buildings. A district system can reduce equipment and maintenance costs, as well as save energy. 9 Picture 2.6. Types of energy used in commercial buildings Retail and service buildings use the most total energy of all the commercial building types. This isn't too surprising when you think of all the stores and service businesses in most towns
The polity is constitutional monarchy, but in practice, parliamentary democracy. The Head of the government is the Prime minister, who right now is John Howard. People Today Australians are mostly white, but before the first fleet reached Australia in 1788, there were only black people. Most of them live near coasts as the climate there is more fertile and human-friendly. Still there are people who like to live in the country, as there is much land and peace. However, because schools are thousands of kilometers away, children have to learn using special programs on the TV and radio. People living in big cities do not all use cars for moving. Getting to work with a bicycle or with even a sailing boat is not strange in Australia. Aborigines are described in the History topic History Aborigines Anthropologists say that the Aborigines were the first humans in the world. Even the word "aboriginal" means "the first" or "earliest known"
In most of the countries where biogas is produced, the excreta of the cattle and other farm animals are used. In India gobar or cow dung is used for the purpose of making biogas. 20% of the excreta of animals are made up of dust particles that are inorganic in nature. The percentage of the inorganic dust particles is brought down by combining water with the excreta in a 1:1 ratio. The rate of feeding of any biogas manufacturing plant that is based on dung is 3,500 kilograms per day. Under normal circumstances the microbial content of the biogas is maintained by the addition of 2% of the expended slurry of the slurry of the fresh dung. 1% calcium ammonium nitrate of the dung is combined with the slurry in such cases. At times waste of kitchens and excrement of human bodies is used in these processes. The human excreta are supposed to occupy, at the most, 3% of the slurry.
Australia Australia is a country and also a continent. If someone wants to make clear, that he is speaking of the country, he may call it by its full name of Commonwealth of Australia. Australia's name means "southland."It is south of the equator. Sometimes it is also called the island continent because it is an island. There are about twenty million people in Australia.It is 1,800 miles from the mainland of Asia and almost half way round the world from Europe. More than 600 miles of ocean separate it from Americas. Since Australia is south of the
.....................11 Materials........................................................................................................................11 2 Australia Introduction Australia is the one and only country in the world which fills the whole continent. The continent it fills is called Australia too. So, Australia is both a country and a continent. If you want to make clear that you are speaking about the country, you may call it the Commonwealth of Australia. It’s the official name of the country. Australia is the smallest continent, but one of the largest countries on Earth. It’s 6th largest country. Its area is about 7.6 million sq km. One third of it is occupied by deserts. It’s both the flattest and, except for Antarctica the driest. Neighbouring countries include Indonesia, East Timor and Papua New Guinea in the north,
are also suited to small off-grid applications, sometimes in rural and remote areas, where energy is often crucial in human development.Kenya has the world's highest household solar ownership rate with roughly 30,000 small (20100 watt) solar power systems sold per year. Some renewable energy technologies are criticised for being intermittent or unsightly, yet the market is growing for many forms of renewable energy. Climate change concerns coupled with high oil prices, peak oil and increasing government support are driving increasing renewable energy legislation, incentives and commercialization. New government spending, regulation, and policies should help the industry weather the 2009 economic crisis better than many other sectors. Costs Renewable energy systems encompass a broad, diverse array of technologies, and the current status of these can vary considerably
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