निम्नलिखित में से कौन-सा संरक्षण क्षेत्र मध्य प्रदेश के होशंगाबाद, बैतूल और छिंदवाड़ा जैसे जिलों में फैले एक विस्तृत वन क्षेत्र को कवर करता 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?