Environmental Management - 0680 CIE

Sustainable Management Of Rocks, Ores And Minerals

Muhtasari

Rocks, ores and minerals are finite: once a deposit is dug out, it is gone for good, because new rock forms far more slowly than we use it. With the world's population and appetite for metals still rising, this raises an uncomfortable question. How can we keep using materials that cannot be replaced without simply running out, and without wrecking the landscapes we mine?

This lesson looks at what sustainable management really means for non-renewable materials, and the practical strategies that make their use more sustainable: reducing and reusing, recycling, extracting more efficiently, finding substitute materials, and using laws to enforce all of these. You will also learn to weigh the benefits and limitations of each strategy, the kind of balanced judgement the exam rewards.

Malengo

  1. 1.3.1 Define a finite resource as a natural resource that is used up at a faster rate than it is replaced.
  2. 1.3.2 Define sustainable management of resources as the use of strategies that ensure the needs of the present are met without compromising the ability of future generations to meet their own needs.
  3. 1.3.3 Describe sustainable management strategies for rocks, ores and minerals, limited to: (a) reduce and reuse (b) recycling: accessibility, ease and education (c) increased efficiency of extraction (d) avoiding resource depletion (e) legislation (f) enforcement (g) use of alternative materials.
  4. 1.3.4 Discuss the benefits and limitations of sustainable management strategies for rocks, ores and minerals.

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Maelezo ya Somo

Every metal we mine today is one less for the future. Some materials, such as the copper in wiring or the rare metals in electronics, are already becoming harder and more expensive to find. Managing these resources well means future generations still have the metals they need, mining damage is kept down, and the energy used to win new metal from ore is saved. Getting this right is one of the central challenges of environmental management.

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  1. A finite resource is one that is: A. Replaced as fast as it is used B. Used up faster than it is replaced C. Only found in one country D. Always recyclable Answer: B
  2. Which strategy saves the most energy compared with extracting metal from ore? A. Strip mining B. Recycling scrap metal C. Deeper drilling D. Building a larger mine Answer: B
  3. Replacing copper telephone wires with fibre-optic cables is an example of using: A. Reuse B. Bioremediation C. Alternative materials D. Strip mining Answer: C
  4. For recycling to be successful, three factors are needed: accessibility, ease and: A. Higher prices B. Education C. More mining D. Deeper deposits Answer: B
  5. The EU WEEE Directive is an example of using which strategy to improve sustainability? A. Reuse only B. Legislation C. Efficient extraction D. Phytomining Answer: B

Fanyia kazi maswali haya kwenye programu

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Vitabu Vinavyopendekezwa

Cambridge IGCSE and O Level Environmental Management Coursebook
Cambridge IGCSE and O Level Environmental Management Coursebook
Manukuu: First edition
Mchapishaji: Cambridge University Press
Mwaka: 2017
ISBN: 978-1-316-63485-1
Maelezo: Endorsed coursebook with full coverage of the 0680 syllabus, case studies, fieldwork skills and exam-style questions.
Cambridge IGCSE and O Level Environmental Management Workbook
Cambridge IGCSE and O Level Environmental Management Workbook
Manukuu: First edition
Mchapishaji: Cambridge University Press
Mwaka: 2017
ISBN: 978-1-316-63487-5
Maelezo: Companion workbook with additional data-response and practice questions across the syllabus.

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