Sustainable Management Of Rocks, Ores And Minerals
Gbogbo ọrọ náà
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.
Ebumnobi
- 1.3.1 Define a finite resource as a natural resource that is used up at a faster rate than it is replaced.
- 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.
- 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.
- 1.3.4 Discuss the benefits and limitations of sustainable management strategies for rocks, ores and minerals.
Nkuzi Olu
Gee ntị na nkuzi a na ngwa
Maapụ uche
E seela isiokwu a ka ị hụ otu echiche si ejikọta.
Mepee maapụ uche na ngwa
Kaadị ncheta
Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.
Mee omume kaadị ndị a na ngwa
Akwụkwọ Ọmụmụ
Ndetu Nkuzi Zuru Ezu di na Ngwa Green Bridge
Nweta ngwa Green Bridge CBT na ekwenti gi ma o bu kompiuta maka ulo akwukwo IGCSE zuru oke: akwukwo ule ndi gara aga, usoro nyocha, eserese uche, kaadi omumu na nkuzi olu.
Nnyocha Ọmụmụ
Ekele diri gi maka imecha ihe karịrị na Sustainable Management Of Rocks, Ores And Minerals. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- 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
- 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
- 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
- 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
- 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
Rue ajuju ndi a n'ime ngwa ahu
Rue ajuju ndi a n'ime ngwa ahu
Akwụkwọ A Na-atụ Aro
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Sustainable Management Of Rocks, Ores And Minerals? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
Budata Ngwa Ahụ Na Google Playstore
Ihe nile ichoro iji nwee ihe ịga nke ọma na JAMB, WAEC & NECO.
