Human Influences On The Environment
Akopọ
Humans have transformed landscapes, altered the composition of the atmosphere, and changed the chemistry of rivers and oceans - all within a few generations. While technology has raised living standards, it has also created pollution, accelerated climate change and driven species toward extinction.
In this lesson you will examine the biological consequences of air and water pollution, trace the mechanism behind the enhanced greenhouse effect, and evaluate the cascading effects of deforestation. These topics are among the most commonly tested on both Edexcel papers, and they connect directly to the carbon cycle and ecosystem concepts you have already studied.
Awọn Afojusun
- Understand the biological consequences of pollution of air by sulfur dioxide and carbon monoxide
- Understand that water vapour, carbon dioxide, nitrous oxide, methane and CFCs are greenhouse gases
- Understand how human activities contribute to greenhouse gases
- Understand how an increase in greenhouse gases results in an enhanced greenhouse effect and that this may lead to global warming and its consequences
- Understand the biological consequences of pollution of water by sewage
- Understand the biological consequences of eutrophication caused by leached minerals from fertiliser
- Understand the effects of deforestation, including leaching, soil erosion, disturbance of evapotranspiration and the carbon cycle, and the balance of atmospheric gases
Akọ̀wé Ẹ̀kọ́
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Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Human Influences On The Environment. 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.
- Which gas causes acid rain when it dissolves in rainwater? A) Carbon dioxide B) Carbon monoxide C) Sulfur dioxide D) Methane Answer: C
- What is the main biological effect of carbon monoxide? A) It causes acid rain B) It binds to haemoglobin, reducing oxygen transport C) It causes global warming D) It causes eutrophication Answer: B
- Which of the following is NOT a greenhouse gas? A) Water vapour B) Carbon dioxide C) Nitrogen D) Methane Answer: C
- Eutrophication begins with: A) Sewage entering a river B) Excess fertiliser being leached into water C) Trees being cut down near a lake D) Fish releasing waste into the water Answer: B
- Which of the following is an effect of deforestation? A) Decreased atmospheric CO2 B) Increased soil fertility C) Soil erosion D) Increased biodiversity Answer: C
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.
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