Pollution
Akopọ
Pollution is what happens when human waste enters the environment faster than it can be broken down or absorbed. Sometimes it is obvious, like oil on a beach; sometimes it is invisible, like the carbon dioxide warming the planet or the nitrates that secretly suffocate a river by feeding it too well.
In this lesson you will describe the effects of sewage, fertilisers and non-biodegradable plastics, and explain how methane and carbon dioxide drive the enhanced greenhouse effect and climate change. You will also work through eutrophication step by step, the surprising process by which adding nutrients to water ends up killing everything in it.
Awọn Afojusun
- Describe the effects of untreated sewage and excess fertiliser on aquatic ecosystems
- Describe the effects of non-biodegradable plastics, in both aquatic and terrestrial ecosystems
- Describe the sources and effects of pollution of the air by methane and carbon dioxide, limited to: the enhanced greenhouse effect and climate change
- [Supplement] Explain the process of eutrophication of water, limited to: increased availability of nitrate and other ions increased growth of producers increased decomposition after death of producers increased aerobic respiration by decomposers reduction in dissolved oxygen death of organisms requiring dissolved oxygen in water
Akọ̀wé Ẹ̀kọ́
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Pollution. 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.
- Excess fertiliser entering a river first causes: A. fish to grow larger B. rapid growth of algae and water plants C. a rise in dissolved oxygen D. fewer decomposers Answer: B
- During eutrophication, the dissolved oxygen falls because: A. plants stop photosynthesising B. decomposer bacteria respire as they break down dead plants C. fish breathe too fast D. nitrates remove oxygen directly Answer: B
- Non-biodegradable plastics are a problem because they: A. are broken down too quickly B. are not broken down by decomposers C. dissolve in water D. release oxygen Answer: B
- Which pair are both greenhouse gases? A. oxygen and nitrogen B. carbon dioxide and methane C. carbon dioxide and oxygen D. methane and nitrogen Answer: B
- A major human source of methane is: A. photosynthesis B. cattle farming and wet rice fields C. burning coal only D. ocean evaporation Answer: B
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Awọn Iwe Itọsọna Ti a Gba Nimọran
Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe
Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Pollution? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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