i)

Ways in which the carbon cycle can be maintained

1. Photosynthesis
2. Decay and decomposition
3. Respiration
4. Avoiding burning
5. Avoiding animals feeding on plants/deforestation
6. Afforestation/tree planting

ii)

Environmental effect when the carbon cycle is disrupted

1. Green house effect
2. Global warming/melting of ice bergs/polar ice/rise in sea level

i)

Human activities that disrupt the carbon cycle

1. Destruction of forest/cutting of trees/lumbering
2. Bush burning
3. Burning of fossil fuels

ii)

Effects of the disruption of the carbon cycle on the environment

1. Global warming/rise in temperature/greenhouse effect/affects climate
2. Reduction in oxygen
3. Rise in sea level/flooding/melting of ice
4. Animals/plants become endangered/extinct
5. Prolonged drought
6. Reduction in rainfall