एक विलगित निकाय (isolated system) के लिए न्यूटन के गति के तीसरे नियम के सीधे परिणामस्वरूप निम्नलिखित में से कौन सी भौतिक राशि संरक्षित रहती 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?