Official Answer Key & Detailed Solution
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Correct Answer: Option (C) — Warm and cold oceanic currents meet
Concept & Option Breakdown
Standard Reference VerifiedThe confluence of warm and cold ocean currents creates optimal conditions for marine productivity:
- Upwelling and mixing supply abundant nutrients, triggering massive blooms of phytoplankton.
- These plankton blooms form the foundation of the marine food web, supporting abundant fish stocks.
- Prominent examples include the convergence of the Gulf Stream and Labrador Current (Grand Banks) and Kuroshio and Oyashio currents off Japan.
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