पौधों और जंतुओं की वे प्रजातियाँ जो अब पृथ्वी पर कहीं भी अस्तित्व में नहीं हैं, कहलाती हैं:

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?