Geography

1. 1.

   Fictional annual carbon accounting for a restored peatland: carbon uptake 12 tonnes C; respiration 7 tonnes C; exported organic carbon 2 tonnes C; fire loss 0. Use storage change = uptake minus listed losses. Methane emissions are not measured. A nearby drained peatland is drier. All quantities are invented; tonnes C are not tonnes CO2-equivalent. Distinguish a carbon store from a carbon flux using this case.

   [2 marks] · no calculator
2. 2.

   Fictional annual carbon accounting for a restored peatland: carbon uptake 12 tonnes C; respiration 7 tonnes C; exported organic carbon 2 tonnes C; fire loss 0. Use storage change = uptake minus listed losses. Methane emissions are not measured. A nearby drained peatland is drier. All quantities are invented; tonnes C are not tonnes CO2-equivalent. Calculate the annual change in carbon storage from the listed flows and state one limitation of interpreting it as a climate benefit.

   [2 marks]
3. 3.

   Fictional annual carbon accounting for a restored peatland: carbon uptake 12 tonnes C; respiration 7 tonnes C; exported organic carbon 2 tonnes C; fire loss 0. Use storage change = uptake minus listed losses. Methane emissions are not measured. A nearby drained peatland is drier. All quantities are invented; tonnes C are not tonnes CO2-equivalent. Explain why drainage can accelerate peat carbon loss.

   [3 marks] · no calculator
4. 4.

   Fictional annual carbon accounting for a restored peatland: carbon uptake 12 tonnes C; respiration 7 tonnes C; exported organic carbon 2 tonnes C; fire loss 0. Use storage change = uptake minus listed losses. Methane emissions are not measured. A nearby drained peatland is drier. All quantities are invented; tonnes C are not tonnes CO2-equivalent. Describe a positive feedback involving warming, peat drying and carbon release.

   [3 marks] · no calculator
5. 5.

   Fictional annual carbon accounting for a restored peatland: carbon uptake 12 tonnes C; respiration 7 tonnes C; exported organic carbon 2 tonnes C; fire loss 0. Use storage change = uptake minus listed losses. Methane emissions are not measured. A nearby drained peatland is drier. All quantities are invented; tonnes C are not tonnes CO2-equivalent. Evaluate the claim that the +3 tonnes C balance proves restoration cools the climate.

   [4 marks] · no calculator
6. 6.

   Fictional annual carbon accounting for a restored peatland: carbon uptake 12 tonnes C; respiration 7 tonnes C; exported organic carbon 2 tonnes C; fire loss 0. Use storage change = uptake minus listed losses. Methane emissions are not measured. A nearby drained peatland is drier. All quantities are invented; tonnes C are not tonnes CO2-equivalent. Assess a restoration plan that raises water levels but restricts nearby farming drainage.

   [4 marks] · no calculator

Original, unofficial practice questions from SubjectScout — not official past-paper questions.