हरियाणा के सुखोमाजरी गाँव में पारिस्थितिक बहाली और आपदा शमन के लिए सफलतापूर्वक तैनात 'सोशल फेंसिंग' मॉडल मुख्य रूप से किससे संबंधित है?

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?