Free Habitat destruction questions for IGCSE Biology (0610), part of Ecology & human influence. Each question has the answer and the marking points an examiner would look for.
Generate a full Habitat Destruction worksheet →All Ecology & human influence questionsWhy does deforestation increase atmospheric carbon dioxide?
Answer: B
Which statement describes deforestation?
Answer: D
Why can deforestation lead to flooding?
Answer: D
Mangrove forests and coral reefs are being destroyed.
Give two reasons for habitat destruction by humans.
Explain why habitat destruction reduces biodiversity.
| Part | Answer and marking points | Marks |
|---|---|---|
| (a) | agriculture; housing; extraction of resources; pollution Any 2 of: increased area for food crops/livestock/housing; extraction of natural resources; marine pollution B2 | 2 |
| (b) | organisms lose food and shelter, die or leave organisms lose food sources and shelter B1 populations decline and species may become extinct B1 | 2 |
This question is about habitat destruction.
Give three reasons why humans destroy habitats.
Explain how clearing a rainforest can lead to an increase in carbon dioxide in the atmosphere.
Explain why deforestation reduces biodiversity.
Explain why soil in a cleared rainforest quickly loses its fertility.
Describe how endangered species can be conserved.
| Part | Answer and marking points | Marks |
|---|---|---|
| (a) | farming land; housing; extraction of resources; pollution; marine pollution Any 3 of: to clear land for crops / livestock; building housing / roads; extraction of natural resources (mining, logging); pollution of land and water B3 | 3 |
| (b) | fewer trees, less photosynthesis; burning releases CO₂; decomposition releases CO₂ fewer trees so less carbon dioxide removed by photosynthesis B1 trees are often burned, releasing CO₂ B1 decomposing wood is respired by microorganisms B1 | 3 |
| (c) | loss of habitats and food; species extinction destroys habitats and food sources B1 so many species are lost / become extinct B1 | 2 |
| (d) | no leaf litter/decomposition; heavy rain leaches minerals, erosion no more leaf litter to decompose and return minerals B1 rain washes minerals away (leaching) / soil is eroded B1 | 2 |
| (e) | protected habitats/reserves; captive breeding; seed banks; legislation; education Any 3 of: monitoring and protecting habitats / nature reserves; captive breeding and reintroduction; seed banks / frozen zoos; laws against hunting and trade; education B3 | 3 |
Humans destroy habitats in several ways.
State three reasons why forests are cleared.
Describe three effects of deforestation.
| Part | Answer and marking points | Marks |
|---|---|---|
| (a) | farming; housing; timber; mining; roads Any 3 of: land for farming; building/housing; timber/fuel; mining; roads B3 | 3 |
| (b) | extinction; loss of soil; flooding; CO₂ increase Any 3 of: loss of habitats and extinction; soil erosion; flooding; increased CO₂ in atmosphere; reduced oxygen production B3 | 3 |
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Meet Riyaz →Original Cambridge-style practice questions written for mentorriyaz.in. These are not Cambridge past paper questions, and this site is not affiliated with or endorsed by Cambridge University Press & Assessment. Updated 2026-11-04. Paper generator · mentorriyaz.in