पादप कोशिका और जंतु कोशिका के बीच अंतर के अनुसार, किसमें एक पूर्ण विकसित कोशिका के मध्य में एक बड़ी रिक्तिका उपस्थित होती 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?