QUESTION TEXT: Spreading iron particles over the surface …
QUESTION TYPE: Principle – Conform
CONCLUSION: The iron-seeding strategy should not be implemented right away.
REASONING: Its side effects haven’t been studied, and it would alter the oceans.
ANALYSIS: For Principle – Conform questions, try to look away from the context a little. The argument isn’t really about climate change or oceans. Those are just the facts of this particular case.
The reasoning is:
- This strategy could solve an important problem.
- But it would change an important resource (the oceans).
- We don’t understand its side effects.
- Therefore, we shouldn’t implement it yet.
The key idea is the combination of two facts:
- The strategy affects an important resource
- Its consequences are not well understood
The conclusion isn’t “never do it.” It’s just don’t implement it until we understand the consequences better.
___________
- Knowing the side effects isn’t enough. The argument doesn’t say that once we know the side effects, we automatically should implement the strategy.
- CORRECT. The oceans are an important resource. The consequences haven’t been adequately studied. So, don’t implement the strategy.
- The argument never says the side effects are worse than the greenhouse effect. It only says they’re unknown.
- Too strong. The author doesn’t object simply because the oceans would be altered. The problem is that they’d be altered without understanding the consequences.
- The author’s concern isn’t that iron seeding might worsen the greenhouse effect. It’s that it may have other unknown side effects affecting the oceans. That’s a different principle. Exacerbation might be concerning, but it’s not what this stimulus is concerned about.
More Resources for Principle Questions
- Intro Course lesson: This intro course lesson covers Principle questions.
- Mastery Seminar lesson: This LR Mastery seminar lesson covers principle questions.

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