How can human activities destroy or degrade habitats?
By removing the places organisms live or making those places less suitable for them.
Cambridge IGCSE (9–1) Biology 0970 (Extended) (2026–2028) · 20.2
Revise Cambridge IGCSE (9–1) Biology 0970 (Extended) (2026–2028) specification point 20.2, Habitat destruction, with free active-recall flashcards. Flip through the set or review every question and answer below.
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How can human activities destroy or degrade habitats?
By removing the places organisms live or making those places less suitable for them.
What three types of land use can replace existing habitats when expanded?
Housing, crop production and livestock production.
What effect can extracting natural resources have on habitats?
It can damage them.
What effect can pollution have on freshwater and marine habitats?
It can make them unsuitable for the organisms living there.
What is biodiversity?
The number of different species living in an area.
What effect can deforestation have on biodiversity?
It can reduce biodiversity by removing forest habitat.
How can deforestation cause a species to become extinct?
The species may be unable to survive the loss of its habitat.
Why can deforestation cause soil to be lost more easily?
Without trees and their roots, soil is less protected and held in place.
Why does deforestation increase the risk of flooding?
Less vegetation takes up or slows rainwater before it reaches the ground.
How can deforestation increase atmospheric carbon dioxide?
Removing trees reduces carbon dioxide uptake by photosynthesis.