निम्नलिखित में से किसे आमतौर पर शहरी ध्वनि प्रदूषण का एक प्रमुख प्राथमिक स्रोत नहीं माना जाता है?

The arrival of which commission in India triggered widespread protests, including mass hartals across the country in 1928?

Which of the following leaders was instrumental in initiating and leading India’s struggle for independence?