वाष्पोत्सर्जन खिंचाव के साथ-साथ, पेड़ मुख्य रूप से किस भौतिक गुण के कारण जाइलम वाहिकाओं के माध्यम से गहरे भूमिगत से पानी ऊपर खींचते हैं?

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?