ब्रज काचरू के मॉडल में, कौन सा वृत्त उन देशों को संदर्भित करता है जहाँ अंग्रेजी दूसरी/संस्थागत भाषा (जैसे भारत, नाइजीरिया) के रूप में उपयोग की 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?