आर्द्रभूमि (संरक्षण और प्रबंधन) नियम, 2017 के तहत अपनी सभी आर्द्रभूमियों को अधिसूचित करने वाला पहला भारतीय राज्य कौन सा बना?

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?