B.5 Synthesis, Evaluation, and Skills

Synthesis in geography means demonstrating how geographic theories causally interact and operate across scales. It is not enough to list relevant processes alongside each other — an explicit linking mechanism must be stated.

The student mentions longshore drift and sea-level rise as two separate facts. There is no sentence explaining that sea-level rise intensifies the sediment deficit created by longshore drift removal, or that the global driver accelerates the local process. The two facts simply coexist on the page.

Writing that lists accurate geographic facts without stating a causal or spatial connection between them is description at two scales, not synthesis. Synthesis requires a linking phrase such as 'this local process is intensified by...' to make the connection explicit.

The correct answer identifies that the student states two processes without showing how one affects the other. The other options raise valid geographic concerns but they do not explain the specific synthesis failure — the missing causal link between the two processes.

The question asks why the student's response counts as description rather than synthesis. We need to find the option that captures the defining characteristic of this failure.

Option A says the student uses incorrect terminology and cites no location. The student's terminology (longshore drift, sea-level rise) is actually correct, so this reason is inaccurate and can be eliminated.

Option C argues the student ignores social and economic impacts. While that may be true, the specific reason the response lacks synthesis is not the absence of social content — it is the missing connection between the two physical processes stated.

Option D says the student fails to recommend a management strategy. A description question does not require a management recommendation, so the absence of one does not define this as a synthesis failure.

Option B remains: the student states two processes without showing how one intensifies or modifies the other. This precisely matches the definition of synthesis failure — accurate facts presented without causal or scalar linkage.

A bearing always states direction from the first named point to the second named point. The question asks for the bearing of the harbour entrance from the lighthouse, so the lighthouse is the origin and the harbour is the target.

The student wrote 'the lighthouse is at 115° from the harbour entrance.' This gives the direction from the harbour to the lighthouse — precisely the opposite of what was requested. Swapping start and end points changes the bearing by 180°.

This is a reference point reversal error: the student placed the origin at the harbour entrance when it should be at the lighthouse. The numerical value and three-figure format may both be correct for the reversed direction, but the answer describes the wrong directional relationship.

The correct answer is that the student reversed the reference point. The bearing format (115°) is three figures and numerically plausible; the issue is purely which feature is treated as the origin of measurement.

The question asks us to identify the specific error in the student's bearing statement. We should check format, direction of measurement, and which point is the stated origin.

Option A claims the bearing was expressed as a two-figure number. The student wrote 115°, which is already three figures (1, 1, 5), so this is factually incorrect and can be eliminated.

Option B claims the student measured anticlockwise. Bearings are always clockwise from north; 115° is a reasonable clockwise bearing to the southeast, so there is no reason to conclude the measurement direction was wrong. This option can be eliminated.

Option D says the student confused a compass point with a bearing. The student clearly used a numerical value (115°), not a label like SE, so this misidentifies the error and can be eliminated.

Option C remains: the student stated 'the lighthouse is at 115° from the harbour entrance' when the question required the harbour's direction from the lighthouse. The origin and target were swapped, producing the opposite bearing relationship.