निम्नलिखित में से कौन सी वृक्ष प्रजाति राजस्थान के उष्णकटिबंधीय शुष्क पर्णपाती वनों में सर्वाधिक बहुतायत में पाई जाती 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?