OCR A Level Biology B (Advancing Biology)
OCR A Level Biology B (Advancing Biology) The Impact of Population Increase Exam Questions
Free OCR A Level Biology B (Advancing Biology) exam questions on The Impact of Population Increase, with mark schemes. Covers human population growth, food security, habitat loss, pollution and conservation.
The Impact of Population Increase exam questions
1 question pack of real past exam questions with its mark scheme. Answer every question without notes, then mark your answers line by line against the mark scheme.
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A Level Biology Flashcards
Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Pick your exam board, then test yourself with the questions on this page.
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About OCR A Level Biology B (Advancing Biology) The Impact of Population Increase
This topic covers the effects of a growing human population.
What you need to know
- Population growth Demographic transition and carrying capacity.
- Food security Intensive farming and its consequences.
- Environmental impact Deforestation, eutrophication and climate change.
- Conservation Protecting habitats and biodiversity.
Common mistakes in The Impact of Population Increase
- Giving vague impacts without mechanisms.
- Mixing eutrophication steps.
- Forgetting economic and social factors.
Try three The Impact of Population Increase exam-style questions
1. Describe eutrophication. (3 marks)
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Fertiliser runoff causes algal bloom (1); plants below die from lack of light (1); decomposers use up oxygen and fish die (1).
2. Give one way to increase food security. (1 mark)
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Genetically modified high-yield crops.
3. State one effect of deforestation. (1 mark)
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Loss of habitats and biodiversity.
The Impact of Population Increase FAQs
What does this topic cover?
Human population growth and its environmental effects.
Is data analysis common here?
Yes, often population and pollution graphs.
What is sustainable development?
Meeting present needs without harming future generations.
Revise this topic with flashcards: A Level Biology Flashcards, with mark scheme answers for Anki and Quizlet.
