Choose the correct collocation:
'Scientists have raised serious ______ regarding the long-term viability of geoengineering techniques.'
Answer and explanation
Correct answer: D. concerns
- Step 1: The established academic and journalistic collocation is to 'raise concerns' about potential risks or implications.
- Step 2: 'Concerns' appropriately reflects scientific apprehension about environmental safety.
Answer
concerns.
Why not the others: 'arguments' typically pairs with 'advance' or 'put forward'; 'notices' pairs with 'serve' or 'issue'; 'hesitations' pairs with 'express' rather than 'raise'.
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