deserts b. ice caps and glaciers c. rivers‚ ponds & lakes 2. Maximum fresh water is used for ______. a. Drinking b. Irrigation of fields c. Washing clothes 3.Contamination of water is a. Health hazard b. Healthy c. None of these 4. Planting new trees is called ________. a. Refforestation b. Deforestation c. Biomes 5. An animal being wiped out from the earth’s surface is called to be _______. a. Extinct b. Carnivore c. Endangered species V Answer these in 20 words
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Homework 6 – Siovhan Tan Referring to examples‚ discuss the threats to biodiversity hotspots and why these threats could prove critical (15 marks) Biodiversity hotspots are areas in the natural environment that contain some of the biggest concentration of flora and fauna in the world‚ often containing many rare and endangered species. However many of these ecosystems are threatened by the likes of climate change‚ increased urbanisation/land use and tourism developments which can prove critical
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to circulate beneath the Earth’s crust and move plates. You should know the process that generates the heat. Depending on the position of the convection currents plates will move in different directions 4. What features and consequences (hazards) does movement of the Earth’s crust have? Features: Plate boundaries Constructive – plates move away from each other to make more land Destructive – plates move towards each other and create fold mountains and ocean trenches Conservative
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Environmental Science is an important subject in the primary school as it teaches the pupils about the world they live in and its surroundings. Some of the things that form part of our environment are plants and animals‚ soil‚ water‚ air‚ political and economic forces‚ cities‚ industries‚ human‚ natural and social system etc. This write up will define the term environmental science and also explain the importance of environmental science in primary school. According to Wright and Boorse [2005]
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indeed very problematic‚ thus leading to the formation of gullies (Ofomata‚ 1984). The rate at which gullies are developing and expanding is definitely a cause for alarm. Gully expansion in southeast Nigeria has officially become an environmental hazard where a number of civilians have been forced to move somewhere else‚ and now more regions are becoming unsuitable for living (Adetona & Ezezika‚ 2011). There are four major factors contributing to soil erosion and gullies in Nigeria. The first two
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in an increase of water into the system thus triggering a flood event to occur. These factors vary depending on if the flooding is inland or coastal‚ but they include heavy rainfall‚ storm surges‚ and snow melt. However‚ humans can exacerbate the hazard in a number of ways‚ such as through increasing the amount of impermeable surfaces‚ building in floodplains and a high population density in flood risk areas. One of the primary causes of river flooding is prolonged and heavy rainfall. This adds
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tended to grow more quickly than Western cities‚ so what makes their growth so phenomenal? The accelerated rate may be attributed to population dynamics‚ economic markets and or/socio-political conditions‚ poor planning and disregarding environmental hazards like flood plains have held them back. Many primate cities in Asia have grown to become megacities‚ and some more are rapidly increasing in size to assume such a status by the end of the century. This is a remarkable phenomenon fraught with various
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Recently‚ researchers have shown an increased interest in environmental issues. Global warming‚ which is increase in the temperature of earth’s atmosphere and leads to climate change‚ is one of them. The controversy about scientific evidence for climate change facts has raged unabated. There are many factors affect global warming such as overuse of technology and lack of social awareness. However‚ it can be seen that the significance of the issue is deemed by humanity. The purpose of this paper is
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technical. Natural hazards and natural disasters may sound like the same thing but there is a small but vital difference. Natural hazards are things like earthquakes‚ volcanic eruptions‚ landslides‚ tsunamis‚ floods and drought - any physical event that happens naturally. They are caused by changes in the atmosphere‚ the earth’s surface or the sea or other body of water. They can happen quickly‚ called a rapid onset hazard‚ or build up gradually‚ called a slow onset hazard. They can happen over
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Before we move on to overpopulation problems‚ we need to know about the various factors that are responsible for this incessant rise in population. Significant improvement in quality of life and basic health services has resulted in decline in death rate‚ and at the same time has caused an increase in the birth rate. Continuous migration of people from underdeveloped areas to developed areas has triggered an unnatural growth in population in developed areas‚ thus‚ putting immense pressure on available
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