Date | November 2018 | Marks available | 2 | Reference code | 18N.1.bp.4 |
Level | SL and HL | Paper | 1 | Time zone | |
Command term | Explain | Question number | 4 | Adapted from | N/A |
Question
The graph shows one possible scenario (set of trends) for the relationship between non-renewable resources and global population over time.
Estimate the year in which global population peaks.
Describe the changes in the relative levels of non-renewable resources between 1900 and 2100.
Briefly explain how this graph shows a neo-Malthusian view.
Referring to one named resource, describe a strategy aimed at reducing its consumption.
Named resource:
Strategy:
Explain one strength or one weakness of the strategy as a way of reducing consumption of the named resource from d(i).
Markscheme
2025 (accept 2023 to 2027)
Award [1] each for up to three valid statements.
- stable/slow decline [1] to 1950/70
- then drops steeply [1] to 2040/60
- after which the level stabilizes again/slow decline [1]
- overall decline [1].
Award [1] for identification of one characteristic of the neo-Malthusian view and [1] for comment on how the graph illustrates the characteristic identified.
For example:
Growing populations could outstrip the provision of resources [1] – population increases but the provision of food declines before the peak population [1].
Advocacy of birth control to ensure resource for future populations [1] – population reaches a peak and then declines [1].
Concern with environmental degradation [1] – as population rises so does pollution [1].
Allow a liberal interpretation of “resource”.
For example:
Named resource: Oil.
Strategy: Substitution of oil power by solar power [1]. Less oil is required (oil can be left in the ground) as solar energy is used to heat homes / run vehicles [1].
Award [1] for valid strategy and [1] for further description of its operation.
Award [1] for valid strength or weakness and [1] for further development that links back to a correct identification of a valid resource and a strategy to reduce its consumption.
For example: A weakness is that it is not available in all areas or at all times [1], which means that we still need to consume oil in some places or at certain times [1].