प्राकृतिक रेशम एक प्रोटीन फाइबर है जो मुख्य रूप से एमिनो एसिड से बना होता है। रेशम जैसे प्रोटीन अणुओं की विशेषता कौन सा रासायनिक तत्व 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?

Which of the following viceroys of India is associated with the 'Ilbert Bill' controversy?