Environmental Management - 0680 CIE

Sustainable Management Of Rocks, Ores And Minerals

Akopọ

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.

Awọn Afojusun

  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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Akọ̀wé Ẹ̀kọ́

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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Oriire fun ipari ẹkọ lori Sustainable Management Of Rocks, Ores And Minerals. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.

Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.

Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.

  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

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Awọn Iwe Itọsọna Ti a Gba Nimọran

Cambridge IGCSE and O Level Environmental Management Coursebook
Cambridge IGCSE and O Level Environmental Management Coursebook
Atunkọ: First edition
Olùtẹ̀jáde: Cambridge University Press
Odún: 2017
ISBN: 978-1-316-63485-1
Apejuwe: 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
Atunkọ: First edition
Olùtẹ̀jáde: Cambridge University Press
Odún: 2017
ISBN: 978-1-316-63487-5
Apejuwe: Companion workbook with additional data-response and practice questions across the syllabus.

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