घरेलू रेफ्रिजरेटर (फ्रिज) के आंतरिक तापमान को नियंत्रित और बनाए रखने के लिए मुख्य रूप से कौन-सा भाग जिम्मेदार होता 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?