Habitat destruction — Paper 1 · IGCSE Sciences - Co-ordinated (Double) 0654

10 Which graph shows the change in world population between 1750 and 2000? A B world world population population 1750 2000 1750 2000 date date C D world world population population 1750 2000 1750 2000 date date

1 marks

Answer: D

This question in 0654/11 Oct/Nov 2007

13 What can lead to global warming? 0 0O WwW > nitrogen fixation x < x deforestation \ x x denitrification ~*~ KOM burning of fossil fuels KS

1 marks

Answer: D

This question in 0654/11 Oct/Nov 2007

13 The diagram shows part of the carbon cycle in a forest. The numbers represent different processes. carbon dioxide in the air 1 2 trees respiration decay 3 animals humus death Which of these processes is reduced in rate as a result of deforestation? A 1 only B 1 and 2 only C 2 and 3 only D 1, 2 and 3

1 marks

Answer: D

This question in 0654/11 May/June 2009

13 What can lead to global warming? deforestation ° un "9 of A v v B v x Cc x v D x x

1 marks

Answer: A

This question in 0654/11 May/June 2012

13 The diagram shows part of the carbon cycle in a forest. The numbers represent different processes. carbon dioxide in the air 1 2 trees decay respiration 3 animals dead animals and trees death Which of these processes is reduced as a result of deforestation? A 1 only B 1 and 2 only C 2 and 3 only D 1, 2 and 3

1 marks

Answer: D

This question in 0654/11 Oct/Nov 2013

12 The diagram shows part of the carbon cycle in a forest. The numbers represent different processes. carbon dioxide in the air 1 2 trees decay respiration 3 animals dead animals and trees death Which of these processes is reduced as a result of deforestation? A 1 only B 1 and 2 only C 2 and 3 only D 1, 2 and 3

1 marks

Answer: D

This question in 0654/12 Oct/Nov 2013

13 The diagram shows part of the carbon cycle in a forest. The numbers represent different processes. carbon dioxide in the air 1 2 trees decay respiration 3 animals dead animals and trees death Which of these processes is reduced as a result of deforestation? A 1 only B 1 and 2 only C 2 and 3 only D 1, 2 and 3

1 marks

Answer: D

This question in 0654/13 Oct/Nov 2013

12 What can directly result from deforestation? build-up of atmospheric flooding methane loss of species 0 OD > «x « & ~~ { & & \ \ x x

1 marks

Answer: C

This question in 0654/12 May/June 2015

13 Deforestation can cause global warming because it leads to A build up of carbon dioxide. B extinction of species. C flooding of low-lying areas. D loss of soil.

1 marks

Answer: A

This question in 0654/11 Oct/Nov 2015

13 In some countries, deforestation has taken place in large areas. What effect would this be likely to have on the environment? A decreased carbon dioxide in the atmosphere B decreased risk of flooding C extinction of local species D increased use of fossil fuels

1 marks

Answer: C

This question in 0654/11 May/June 2016

13 When raw sewage is discharged into a river, there is A a decrease in oxygen concentration caused by a decrease in bacterial activity. B a decrease in oxygen concentration caused by an increase in bacterial activity. C an increase in oxygen concentration caused by a decrease in bacterial activity. D an increase in oxygen concentration caused by an increase in bacterial activity.

1 marks

Answer: B

This question in 0654/13 May/June 2016

13 What is an undesirable effect of deforestation? A It increases the oxygen concentration of the atmosphere. B It leads to erosion and loss of soil. C It makes land available for agriculture. D It pollutes the air with methane.

1 marks

Answer: B

This question in 0654/12 Oct/Nov 2016

9 What would be the effects of deforestation on the level of atmospheric carbon dioxide and the amount of soil? carbon dioxide amount of soil level A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: C

This question in 0654/11 May/June 2017

11 The list shows some effects of human activities. P global warming Q loss of fossil fuels R water pollution S flooding Which effects can be the result of deforestation? A P and Q B P and S C Q and R D R and S

1 marks

Answer: B

This question in 0654/12 May/June 2017

5 The diagram shows a river and four farms. The numbers in the river show relative oxygen concentrations. From which farm is sewage leaking into the river? A 10 direction of flow 10 B 9 10 D 10 C 4 5 6 8

1 marks

Answer: D

This question in 0654/13 May/June 2017

13 What could deforestation cause? A a decrease in carbon dioxide levels and a decrease in flooding B a decrease in carbon dioxide levels and an increase in flooding C an increase in carbon dioxide levels and a decrease in flooding D an increase in carbon dioxide levels and an increase in flooding

1 marks

Answer: D

This question in 0654/11 Oct/Nov 2017

13 What is not an effect of deforestation? A carbon dioxide build-up in the atmosphere B habitat loss C soil loss D species conservation

1 marks

Answer: D

This question in 0654/11 Oct/Nov 2018

13 What is not an effect of deforestation? A carbon dioxide build-up in the atmosphere B habitat loss C soil loss D species conservation

1 marks

Answer: D

This question in 0654/12 Oct/Nov 2018

13 A pupil listed some undesirable effects of deforestation. 1 increase of carbon dioxide in the atmosphere 2 extinction of species 3 flooding 4 increased number of habitats Which effects are correct? A 1, 2, 3 and 4 B 1, 2 and 3 only C 1, 2 and 4 only D 2, 3 and 4 only

1 marks

Answer: B

This question in 0654/12 May/June 2019

13 A pupil listed some undesirable effects of deforestation. 1 increase of carbon dioxide in the atmosphere 2 extinction of species 3 flooding 4 increased number of habitats Which effects are correct? A 1, 2, 3 and 4 B 1, 2 and 3 only C 1, 2 and 4 only D 2, 3 and 4 only

1 marks

Answer: B

This question in 0654/13 May/June 2019

13 Untreated sewage is released into a river at point X. Which graph correctly shows changes in oxygen concentration of the water as the river flows away from X? A B oxygen oxygen concentration concentration X distance X distance from X from X C D oxygen oxygen concentration concentration X distance X distance from X from X

1 marks

Answer: B

This question in 0654/11 Oct/Nov 2019

13 What could deforestation cause? A a decrease in carbon dioxide levels and a decrease in flooding B a decrease in carbon dioxide levels and an increase in flooding C an increase in carbon dioxide levels and a decrease in flooding D an increase in carbon dioxide levels and an increase in flooding

1 marks

Answer: D

This question in 0654/11 May/June 2020

13 What could deforestation cause? A a decrease in carbon dioxide levels and a decrease in flooding B a decrease in carbon dioxide levels and an increase in flooding C an increase in carbon dioxide levels and a decrease in flooding D an increase in carbon dioxide levels and an increase in flooding

1 marks

Answer: D

This question in 0654/12 May/June 2020

13 What could deforestation cause? A a decrease in carbon dioxide levels and a decrease in flooding B a decrease in carbon dioxide levels and an increase in flooding C an increase in carbon dioxide levels and a decrease in flooding D an increase in carbon dioxide levels and an increase in flooding

1 marks

Answer: D

This question in 0654/13 May/June 2020

13 The diagram shows a river and four farms. The numbers in the river show relative oxygen concentrations. From which farm is untreated sewage leaking into the river? A 10 direction of flow 10 B 9 10 D 10 C 4 5 6 8

1 marks

Answer: D

This question in 0654/11 Oct/Nov 2020

13 The diagram shows a river and four farms. The numbers in the river show relative oxygen concentrations. From which farm is untreated sewage leaking into the river? A 10 direction of flow 10 B 9 10 D 10 C 4 5 6 8

1 marks

Answer: D

This question in 0654/12 Oct/Nov 2020

13 The diagram shows a river and four farms. The numbers in the river show relative oxygen concentrations. From which farm is untreated sewage leaking into the river? A 10 direction of flow 10 B 9 10 D 10 C 4 5 6 8

1 marks

Answer: D

This question in 0654/13 Oct/Nov 2020

13 What could be a result of deforestation? A a decrease in flooding because there are less tree roots present B an increase in carbon dioxide because there are less tree leaves respiring C a decrease in soil erosion because there are less tree roots present D an increase in extinction because there are less habitats present

1 marks

Answer: D

This question in 0654/12 Feb/March 2021

13 What is an undesirable effect of deforestation? A It increases the oxygen concentration of the atmosphere. B It leads to erosion and loss of soil. C It makes land available for agriculture. D It pollutes the air with methane.

1 marks

Answer: B

This question in 0654/11 Oct/Nov 2022

13 What is an undesirable effect of deforestation? A It increases the oxygen concentration of the atmosphere. B It leads to erosion and loss of soil. C It makes land available for agriculture. D It pollutes the air with methane.

1 marks

Answer: B

This question in 0654/12 Oct/Nov 2022

13 What is an undesirable effect of deforestation? A It increases the oxygen concentration of the atmosphere. B It leads to erosion and loss of soil. C It makes land available for agriculture. D It pollutes the air with methane.

1 marks

Answer: B

This question in 0654/13 Oct/Nov 2022

13 Which row about the effects of deforestation is correct? amount of risk of flooding carbon dioxide in atmosphere A decreased decreased B decreased increased C increased decreased D increased increased

1 marks

Answer: D

This question in 0654/12 May/June 2023

13 Which row about the effects of deforestation is correct? amount of risk of flooding carbon dioxide in atmosphere A decreased decreased B decreased increased C increased decreased D increased increased

1 marks

Answer: D

This question in 0654/13 May/June 2023

13 Which row describes the effects of deforestation? level of risk of carbon dioxide flooding in the air A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: D

This question in 0654/13 Oct/Nov 2023

13 What are undesirable effects of deforestation? A habitat creation and decreased carbon dioxide in the atmosphere B habitat creation and increased carbon dioxide in the atmosphere C habitat destruction and decreased carbon dioxide in the atmosphere D habitat destruction and increased carbon dioxide in the atmosphere

1 marks

Answer: D

This question in 0654/12 Oct/Nov 2025

13 What are undesirable effects of deforestation? A habitat creation and decreased carbon dioxide in the atmosphere B habitat creation and increased carbon dioxide in the atmosphere C habitat destruction and decreased carbon dioxide in the atmosphere D habitat destruction and increased carbon dioxide in the atmosphere

1 marks

Answer: D

This question in 0654/13 Oct/Nov 2025