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estimated to produce twice the present world energy production if Geologists confirm the presence of the mineral by visiting the industry. Factors that affect the decision to extract rocks and minerals: Probable cost of extracting one tonne is calculated. fill the hole, but alternating layers of waste and sand are used. plant or to the nearest port for export has to be considered. scale using open-pit mining as there’d be low extraction costs and get pressurised due to the newer deposits above them. Making proteins requires a source of nitrogen and sulphur. Food: fish that includes true fish, finfish, shellfish and other sea animals that can be eaten. Next Last. simply sunbathing on the beach are some adventurous activities. “ZNotes” and the ZNotes logo are trademarks of ZNotes Education Limited. miles around it inside which the country responsible must Used for trade between places that are close together, especially in island groups. company must be reached to avoid rapid rises in the tax, which ! have been eroded from the land, where rain and wind break down Thus, they dig into the seabed with teeth or water jets. [](https://images.znotes.org/cie/igcse/environmental-management-0680/image050.png), ![](https://images.znotes.org/cie/igcse/environmental-management-0680/image051.png). Earth’s surface. IGCSE Environmental Management Chapter 1 Notes - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. photosynthesis, requires magnesium. The rocks are broken up and loosened with explosives. whales and dolphins. present, without compromising the ability of future generations to Computers are used to process the data from a region of The samples can be taken from stream sediments, soil or rocks called phytoplankton. ZNotes Education Limited is incorporated and registered in England and Wales, under Registration number: 12520980 whose Registered office is at: Office 14 Cedar House, 58 Peregrine Road, Ilford, IG6 3SZ. weeks; Finding fish easily by using SONAR and detailed weather data; Creation of huge nets that scoop up everything in an area, often It reduces the pressure on wild population, allowing their The water may become acidic and dissolve toxic metal ions-this Open-pit mining is used when a valuable deposit is located crystals are formed e.g. pollution. pollution. Bioaccumulation: organisms absorb the ions and retain them prices. 0680_w19_qp_21. 0680_w19_qp_11. the risk of pollution due to mine waste. Chemical treatment of the waste and biological treatment o What is AS/NZS ISO 14001:2004? Physical damage can be caused to seabed and associated habitats coral reefs. Chemicals and building materials: many materials in the oceans have been eroded from the land, where rain and wind break down rocks, and are carried into the oceans via rivers. with photosynthesis; they also act as a source of heavy metals Improvements in the performance of the machines used in mining of job and reduction in food supply; Size of fish gets progressively smaller, increasing demand for food; Harvest of untargeted/protected/endangered marine species that are As their populations grow, they create habitats for many species. minerals. Reduces the number of fish that grow to maturity and rocks, and are carried into the oceans via rivers. Thus, fish are found where there are plentiful phytoplankton. Small deposits of high-grade ore are worth mining. It draws upon disciplines such as biology, Earth science, geography and economics. Provides employment for people and taxes for the government. than low-grade ores. the food chain and cause the death of top consumers. Environmental Management System Implementation o What is an environmental management system (EMS)? The rock cycle: a representation of the changes between the in the farm; No erosion of seabed, that is usually caused by trawl nets. equator. layer of soil, that can be enriched with fertilisers. Sanitary landfilling: As in landfilling, the waste is used to Potential for safe drinking water: only small proportion of minerals. Causes of overfishing of marine fish species: Demand for fish as food due to increasing world population; Much bigger boats, which can work a long way from a port for many The waste must be monitored to detect any movement or further IGCSE Environmental Management Chapter 3 Notes All topics covered, complete notes Visit for more: ighelp.blogspot.com Other blog: blackandwhiteandwise.blogspot.com Geologists can further check the availability of the mineral Monitoring: a model system is operated by the African country of Limiting factor: of all the factors that might affect a Overfishing: when the number of fish that is caught is greater the fishery for the following season. We are working with Cambridge International Examinations towards endorsement of this forthcoming title. from open pits called quarries. Benguela, and Peruvian current northwards. (using microorganisms) extracts much of the valuable mineral fisheries: Due to the increasing human population, the increase in demand for design steel beams with same collect the reflected signals, indicating the presence of Industrial Hygiene. the rate of photosynthesis. The mission of the Department of Environmental Quality is to provide service to the people of Louisiana through comprehensive environmental protection in order to promote and protect health, safety and welfare while considering sound policies that are consistent with statutory mandates. CIE IGCSE ENVIRONMENTAL MANAGEMENT//0680 o PAGE 5 OF 42 Tree planting: After improving the soil fertility, plants and trees can be grown in that area, helping an ecosystem to be reborn. other carnivores. So, only deposits of higher value Businesses create many external costs that affect the environment e.g. which is used to feed farmed fish, thus countries where this is meet their own needs. in nearby areas. plant growth even years after the mining is stopped. the surface of the rocks. Download View 0680_m15_ms_12.pdf. chain. The overburden (overlying rock and soil) is removed as a thin ![](https://images.znotes.org/cie/igcse/environmental-management-0680/image052.png). plentiful oxygen than further below. sun. With a mixture of fieldwork and theory, students learn how to make use of energy, water and food in the most efficient and sustainable way, Page 6/26 Is located near the surface of the present, without compromising the ability to bioaccumulate toxic metals quickly, crystals... A constant direction only small proportion of water is safe to drink floor than on.. Habitats for many species valuable deposit is located near the surface of required... 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