vulnerable; a series of man-made shocks are now pushing it over the edge. Global warming is accelerating the retreat of the glaciers that feed China’s major rivers even as it hastens the advance of deserts that now swallow up a million acres of grassland each year. Nothing‚ however‚ has precipitated the water crisis more than three decades of breakneck industrial growth. China’s economic boom has‚ in a ruthless symmetry‚ fueled an equal and opposite environmental collapse. In its race to become the
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It has been decades since I last visited the Gobi Desert. Back in then‚ I was still a secondary student who was amazed by this Asia "endless sea". Time flies‚ I am now studying the mysterious Gobi Desert as a geologist. By comparing my research data collected recently with my previous knowledge and memories about the desert‚ I am shocked by its external and internal change. Stretching from South Mongolia to China‚ Gobi Desert is the world fifth-largest desert. With wonders like the Silk Road‚ the
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The population of the meerkat can be found in the deserts and grasslands of Africa including southwestern Botswana‚ western and southern Namibia‚ and north and west South Africa. They can also be found in the southwestern areas of Angola and in the lowlands of Lesotho. The meerkat is commonly known for living underground in tunnels. Some tunnels can have as many as 15 entrance and exit holes. Furthermore‚ a limiting factor of meerkats is that meerkats barely come out of their holes in the ground
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utility lines and gunshot wounds. These birds are being i killed for their eyes and feet‚ which are traded in Asian markets. There are about 290‚000 snowy owls in the world. The snowy owl lives in Northern most Canada‚ Alaska‚ polar‚ tundra‚ grasslands‚ or frozen lakes. Snowy owls are very territorial. Males defend a territory during the breeding season. When food is scarce‚ males defend bigger territories. During winter‚ females defend their territories. Snowy owls are also migratory. Rather
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“The vegetation of the UK has been so massively affected by human activity that there is now no climax vegetation left. The whole country is now effectively a plagio-climax. Discuss this statement. (40 marks) A plagio-climax is the plant community that exists when human interference prevents the climatic climax from being reached. The plagio-climax of Britain is heather moorland as it is maintained by human intervention. The uplands of Britain use to be covered by a climax vegetation of deciduous
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homes‚ or portable tents‚ which is perfect for a nomadic lifestyle (YouTube video - In Mongolia‚ A Changing Nomadic Way Of Life). The long song “urtyn duu” with free and nonpulsatile melodic elaborations or melismas reflects the vastness of the flat grasslands in Mongolia. Those songs are played with portable music instruments like the morin huur or the horse head fiddle‚ the limba or the transverse flute‚ and the kuuchir‚ the spike fiddle‚ during the "nair" celebrations (Alves‚ 237). The long songs are
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hot summer and cold winters are characteristic of temperate deciduous forest. They occur in temperate areas where precipitation ranges from about 75 to 126 cm annually. 5. Temperate Grassland – the hot summer‚ cold winters‚ fire helps share the landscape and rainfall is often uncertain in temperate grassland. Annual precipitation averages 25 to 75 cm. 6. Chaparral – Is a thicket of evergreen shrubs and small trees. 7. Desert – are dry areas found in temperate region (cold desert) and
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The Little Bison Basin PROBLEM 8 ‚t .. ~ The Little Bison River flows from small glaciers in the high cirques of the Rocky Mountains east to the Great Plains of North America‚ where it ultimately joins the Missouri system. The valley through the Rockies contains a few small towns which are supported by the ski industry and tourism. Recently‚ extensive natural gas deposits have been discovered in the area‚ and salvage archaeology projects have been funded to assess the nature of archaeological
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Esmeralda Roon – Grade 11 3rd July 2017 LIFE SCIENCE INVESTIGATIVE RESEARCH PROJECT TITLE CAN COMMERCIAL STOCK FARMING IN THE KAROO BE PERFORMED IN AN ENVIRONMENTALLY SUSTAINABLE WAY INCORPORATING THE REHABILITATION OF DEGRADED FARMLAND? Contents Description Page Contents 2 Abstract 3 Experiment 1 : Krommelboog Farm (soil quality when using Holistic Management) 4 • Aim 4 • Hypothesis 4 • Method 4 • Results 4/5 Conclusion 5 Experiment 2 : Krommelboog Farm (water movement)
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Biology‚ 7e (Campbell) Chapter 53: Community Ecology Chapter Questions 1) Communities can be linked by which of the following? I. predation II. systematics III. competition A) I only B) III only C) I and II only D) I and III only E) I‚ II‚ and III Answer: D Topic: Concept 53.1 Skill: Knowledge 2) Which of the following statements is consistent with the competitive exclusion principle? A) Bird species generally do not compete for nesting sites. B) The density of one competing species
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