बुजुर्ग व्यक्तियों में, यदि पर्याप्त मात्रा में तरल पदार्थ न लिया जाए तो प्यास की अनुभूति कम होने से प्राथमिक रूप से किस स्वास्थ्य जोखिम की संभावना बढ़ 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?