HomeUPSCPorts of the Baltic Sea remain open for trade even during winter because – 351. Ports of the Baltic Sea remain open for trade even during winter because –By Admin / October 4, 2025 A. It lies in the tropical belt B. North Atlantic Drift, a warm ocean current flows in the region. C. Local winds keep it warm. D. Western disturbances cause abrupt rise in the temperature. ✅ The correct answer is option B.