Water Pollution
Gbogbo ọrọ náà
Water is the universal solvent, which is exactly why it is so easily polluted. Almost anything we spill, flush or wash away ends up dissolved or suspended in a river, lake or sea. A single careless factory outfall can poison a fishery; a field of fertiliser can suffocate a whole lake; untreated sewage can spark an outbreak of deadly disease. Clean water is precious, and keeping it clean is one of the central problems of environmental management.
In this lesson you will learn where water pollution comes from, how it harms both people and ecosystems, and what can be done about it. You will follow the sinister chain of eutrophication, see how toxic chemicals build up inside living things and magnify up a food chain, and weigh the strategies, from better sanitation to tough laws, that keep our water fit to use.
Ebumnobi
- 3.2.1 Describe the sources of water pollution, limited to: (a) domestic waste (b) sewage (c) plastic waste (d) industrial processes (e) agricultural practices.
- 3.2.2 Describe and explain the impacts of water pollution on people and on the environment, limited to: (a) risk of infectious bacterial diseases: cholera (b) accumulation of toxic substances from industrial processes (c) bioaccumulation of toxic substances in a single organism over time (d) biomagnification of toxic substances as they increase in concentration as they are passed up a food chain (e) the effect of acid rain on organisms in rivers and lakes (f) leaching and nutrient enrichment from organic content and inorganic ions leading to eutrophication.
- 3.2.3 Describe strategies for improving water quality, limited to: (a) improved sanitation (b) treatment of sewage (c) pollution control and legislation.
Akọmọ Ojú-ẹkọ
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na Water Pollution. 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.
- Which of these is a source of water pollution from agriculture? A. industrial outfalls B. fertiliser run-off C. sewage D. plastic bottles Answer: B
- During eutrophication, the dissolved oxygen in the water is used up mainly by: A. algae photosynthesising B. fish breathing C. bacteria decomposing dead algae D. plants growing Answer: C
- The build-up of a toxic substance inside a single organism over time is called: A. biomagnification B. bioaccumulation C. eutrophication D. leaching Answer: B
- Which strategy most directly keeps human waste separate from drinking water? A. controlled burning B. improved sanitation C. desalination D. chlorination of the sea Answer: B
- Acid rain that pollutes rivers is mainly caused by: A. fertiliser run-off B. sewage C. gases from burning fossil fuels D. plastic waste Answer: C
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Water Pollution? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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