Habitat destruction — Paper 1 · IGCSE Biology (9-1) 0970

40 What is a negative impact to an ecosystem of large-scale monoculture? A Crops need harvesting at the same time. B Monocultures produce less food. C Monocultures produce more food. D The genetic variation of organisms is reduced.

1 marks

Answer: D

This question in 0970/11 May/June 2018

39 What is a negative impact on the environment caused by deforestation? A decrease in land for livestock production B decreased levels of carbon dioxide in the air C increase in flooding D increased levels of soil

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2018

40 Large areas of tropical forests have been cleared to grow monocultures of palm oil plants. Which effect will this have on the ecosystem? A The use of fossil fuels in the area will decrease. B The use of pesticides in the area will decrease. C The variety of species in the area will decrease. D The variety of species in the area will increase.

1 marks

Answer: C

This question in 0970/11 May/June 2019

39 What are the possible effects of deforestation? decrease in atmospheric loss of soil flooding carbon dioxide A yes yes no B yes no yes C no yes no D no no yes

1 marks

Answer: A

This question in 0970/12 Oct/Nov 2019

39 Which is an example of an undesirable effect of deforestation? A decreased carbon dioxide concentration in the atmosphere B decreased soil erosion C increased flooding D the variety of organisms is maintained

1 marks

Answer: C

This question in 0970/11 May/June 2020

40 Wheat is often grown in large areas as a monoculture. What is a negative environmental impact of this method of farming? A The variety of species in the area is reduced. B Fewer types of pesticide are needed. C Larger harvests can be produced. D Specialist machinery can be used.

1 marks

Answer: A

This question in 0970/11 May/June 2020

40 The graph shows four areas of forest that were cut down and then replanted with trees in one part of the world between 1995 and 2015. Which area of forest was used most sustainably? area of key forest replanted trees trees cut down A B C D

1 marks

Answer: B

This question in 0970/12 May/June 2020

39 Large areas of forest are cut down in order to clear the land for other uses. If the land is not replanted with trees or crops, what effect does this have on the atmosphere? A Carbon dioxide remains the same. B Carbon dioxide increases. C Oxygen increases. D Water vapour increases.

1 marks

Answer: B

This question in 0970/12 Oct/Nov 2020

40 What are reasons why species become endangered? A habitat destruction, hunting and introduced species B habitat protection, introduced species and monitoring C habitat destruction, hunting and captive breeding programmes D hunting, pollution and seed banks

1 marks

Answer: A

This question in 0970/12 Oct/Nov 2021

40 What could be undesirable effects of deforestation? 1 extinction of species 2 increased flooding 3 reduction of atmospheric carbon dioxide A 1 and 2 only B 1 and 3 only C 1, 2 and 3 D 2 and 3 only

1 marks

Answer: A

This question in 0970/12 Oct/Nov 2022

38 Which change occurs when areas of forest are cleared for farming? A decreased release of carbon dioxide into the atmosphere B increased biodiversity C increased loss of soil D increased release of oxygen into the atmosphere

1 marks

Answer: C

This question in 0970/12 May/June 2024

37 The graph shows the percentage of species lost, in three different animal groups, due to different human activities during the last ten years. 100 80 key habitat loss 60 percentage of exploitation species lost 40 pollution other factors 20 0 mammals reptiles and birds amphibians animal group Which activity has caused the highest percentage of species loss overall? A habitat loss B exploitation C pollution D other factors

1 marks

Answer: A

This question in 0970/12 May/June 2025

38 Which statements describe the effects of deforestation? 1 Biodiversity increases. 2 The level of carbon dioxide in the atmosphere increases. 3 Soil is lost from the area. 4 There is a decrease in flooding. A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2025