Critical Reasoning (CR) | Re: Guillemots are birds of Arctic regions. They feed on fish that gather

Guillemots’ Range

Step 1: Identify the Question

The word weakens indicates that this is a Weaken the Argument question.

Step 2: Deconstruct the Argument

G eat fish below ice

G nest on land (80 days no snow)

à Limit range to S Arctic

Ó Warming = enlarged range N

Step 3: Pause and State the Goal

On Weaken questions, the correct answer makes the conclusion less likely to be valid. The conclusion states that warming temperatures will expand the range of the Guillemots because they will
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