लक्षद्वीप द्वीप समूह मुख्य रूप से किस प्रकार की प्रवाल भित्ति संरचना से बने हैं?

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?