निम्नलिखित में से किस बहुलक (polymeric) पदार्थ का प्रतिबल-विकृति (stress-strain) व्यवहार निम्न प्रतिबल स्तरों पर उत्पन्न बड़े प्रतिवर्ती विकृति (recoverable strains) को दर्शाता है?

The Dandi March, also known as the Salt Satyagraha, was led by which influential leader?

Which act formally granted independence to India, marking the end of British rule?

Who was the key figure in establishing the Indian National Congress?