Habitat destruction — Paper 1 · IGCSE Science - Combined 0653

13 Deforestation in tropical rain forests can lead to A decreased carbon dioxide in the air. B decreased species diversity. C increased number of habitats. D increased oxygen in the air.

1 marks

Answer: B

This question in 0653/11 May/June 2006

13 Which farming practice increases species diversity? A cutting down trees B grazing more cattle C maintaining plant cover D using tractors

1 marks

Answer: C

This question in 0653/11 May/June 2007

13 Which procedure would reduce soil erosion? A allowing large numbers of sheep to graze on grassland B changing sloping farmland into terraced fields C cutting down rainforests for agricultural use D reducing the number of trees on hillsides

1 marks

Answer: B

This question in 0653/11 May/June 2008

13 Which are possible harmful effects of deforestation? reduced species global warming diversity soil erosion A v v v B v v x Cc v x x D x v v key Jv =yes X =no

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2008

13 The graph shows the number of species of plants in different parts of a rainforest. number of species of plants (Western) edge middle (Eastern) edge parts of rainforest Which statement about species diversity is correct? A It is greatest at the edges of the forest. B It is greatest in the middle of the forest. C Is the same at both edges of the forest. D It is the same throughout the forest.

1 marks

Answer: B

This question in 0653/11 May/June 2009

10 Rain forests have high species diversity. What is meant by the term species diversity? A Members of a species in the forest are scattered over a wide area. B Members of a species show a wide range of variations. C There are many different species present. D The same species are found in many different rain forests in the world.

1 marks

Answer: C

This question in 0653/12 May/June 2010

13 What will increase soil erosion? A deforestation B maintaining natural plant cover C reducing grazing by livestock D terracing of the land

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2010

13 What will increase soil erosion? A deforestation B maintaining natural plant cover C reducing grazing by livestock D terracing of the land

1 marks

Answer: D

This question in 0653/12 Oct/Nov 2010

14 What will increase soil erosion? A deforestation B maintaining natural plant cover C reducing grazing by livestock D terracing of the land

1 marks

Answer: A

This question in 0653/13 Oct/Nov 2010

13 Deforestation in tropical rain forests can lead to A decreased carbon dioxide in the air. B decreased species diversity. C increased number of habitats. D increased oxygen in the air.

1 marks

Answer: B

This question in 0653/11 May/June 2011

13 Deforestation in tropical rain forests can lead to A decreased carbon dioxide in the air. B decreased species diversity. C increased number of habitats. D increased oxygen in the air.

1 marks

Answer: B

This question in 0653/12 May/June 2011

12 Which process reduces soil erosion on hilly ground? A cutting down the trees B increasing the number of grazing animals C ploughing up and down the hilly ground D terracing the hilly ground

1 marks

Answer: D

This question in 0653/12 Oct/Nov 2011

11 Which process reduces soil erosion on hilly ground? A cutting down the trees B increasing the number of grazing animals C ploughing up and down the hilly ground D terracing the hilly ground

1 marks

Answer: D

This question in 0653/13 Oct/Nov 2011

13 Which are possible harmful effects of deforestation? global warming species extinction A v v B v x Cc x v D x x

1 marks

This question in 0653/11 May/June 2012

13 Which are possible harmful effects of deforestation? global warming species extinction A v B x Cc v D x

1 marks

Answer: A

This question in 0653/12 May/June 2012

13 Which are possible harmful effects of deforestation? global warming species extinction A v B x Cc v D x

1 marks

Answer: A

This question in 0653/13 May/June 2012

13 What is the effect of cutting down large numbers of trees? A Flooding is less likely to occur. B It increases the amount of carbon dioxide in the air. C It increases the amount of methane in the air. D It prevents the extinction of animal species.

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2013

13 What is the effect of cutting down large numbers of trees? A Flooding is less likely to occur. B It increases the amount of carbon dioxide in the air. C It increases the amount of methane in the air. D It prevents the extinction of animal species.

1 marks

Answer: B

This question in 0653/12 Oct/Nov 2013

13 Fresh sewage runs into a river. Why does this reduce the fish population in the river? A It brings organisms that feed on fish. B It carries bacteria that reduce oxygen concentration. C It decreases the growth of algae. D It makes the water too cloudy for fish to see.

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2015

13 Deforestation could have which effect? A a decrease in carbon dioxide in the atmosphere B an increase in oxygen in the atmosphere C less likelihood of flooding D the extinction of species

1 marks

Answer: D

This question in 0653/12 Oct/Nov 2016

13 Which are undesirable effects of deforestation? 1 build up of carbon dioxide in the air 2 extinction of species 3 loss of soil A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: A

This question in 0653/13 Oct/Nov 2016

13 What is not an effect of deforestation? A extinction of plant species B flooding of river valleys C increase of oxygen in the air D loss of soil by erosion

1 marks

Answer: C

This question in 0653/11 May/June 2017

13 Large-scale deforestation of a rain forest occurs in one country. This can have many undesirable effects on the local environment. Which undesirable effect could also directly affect the environment of a country on the other side of the world? A extinction of animal species native to the rain forest B increased carbon dioxide concentration in the air C increased soil erosion on hillsides D reduced drainage leading to flooding

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2017

13 The graph shows changes in the number of different species in the water flowing along a river. At which point is untreated sewage released into the river? number of different species direction of water flow A B C D distance along river

1 marks

Answer: B

This question in 0653/13 Oct/Nov 2017

13 What is not an effect of deforestation? A extinction of species B flooding of farmland C increase of oxygen in the air D loss of soil

1 marks

Answer: C

This question in 0653/11 May/June 2018

13 Which are possible harmful effects of deforestation? global warming species extinction A v v B v x Cc x v D x x

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2018

13 Which are possible harmful effects of deforestation? global warming species extinction A v v B v x Cc x v D x x

1 marks

Answer: A

This question in 0653/12 Oct/Nov 2018

13 Which are possible harmful effects of deforestation? global warming species extinction A v v B v x Cc x v D x x

1 marks

Answer: A

This question in 0653/13 Oct/Nov 2018

13 Which gas builds up in the atmosphere as a result of deforestation? A carbon dioxide B methane C nitrogen D oxygen

1 marks

Answer: A

This question in 0653/11 May/June 2019

13 Which graph shows the relationship between the increase in deforestation and the carbon dioxide concentrations in the atmosphere? A B arbitrary arbitrary units units time time key deforestation C D CO2 concentration arbitrary arbitrary units units time time

1 marks

Answer: A

This question in 0653/13 May/June 2019

13 Which row describes deforestation and states one of its effects? description of deforestation effect on the atmosphere A trees planted decrease in oxygen B trees planted increase in oxygen C trees cut down decrease in carbon dioxide D trees cut down increase in carbon dioxide

1 marks

Answer: D

This question in 0653/11 Oct/Nov 2019

13 Which row shows the effects of deforestation? concentration of amount of carbon dioxide photosynthesis in atmosphere A less more B less less C more less D more more

1 marks

Answer: A

This question in 0653/12 Oct/Nov 2019

13 Which row shows the effects of deforestation? concentration of amount of carbon dioxide photosynthesis in atmosphere A less more B less less C more less D more more

1 marks

Answer: A

This question in 0653/13 Oct/Nov 2019

13 What is an undesirable effect of deforestation? A a decrease in flooding B an increase in atmospheric carbon dioxide C an increase in the number of habitats for organisms D an increase in the number of species

1 marks

Answer: B

This question in 0653/11 May/June 2020

13 Which gas increases in the atmosphere as a result of deforestation? A carbon dioxide B methane C nitrogen D oxygen

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2022

13 What is an effect of deforestation on the environment? A increased carbon dioxide in the atmosphere B improved soil condition C reduced levels of flooding D increased variety of animals in the area

1 marks

Answer: A

This question in 0653/11 May/June 2023

13 What is an undesirable effect of deforestation? A less carbon dioxide in the atmosphere B less extinction C less flooding D loss of soil

1 marks

Answer: D

This question in 0653/12 May/June 2024

13 What are undesirable effects of deforestation? 1 extinction of species 2 flooding 3 loss of soil 4 an increase of carbon dioxide in the atmosphere A 1, 2, 3 and 4 B 1 and 4 only C 2 and 3 only D 2 and 4 only

1 marks

Answer: A

This question in 0653/11 May/June 2025