R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 Biology Q. The most productive ecosystem in the biosphere is (A) Tundra (B) Estuary (C) Open Ocean (D) Desert 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (B) Estuary You must be Logged in to update hint/solution 💬 Discussion 💬 Comment