निम्नलिखित में से कौन सा रासायनिक पदार्थ खाद्य श्रृंखलाओं में जैव आवर्धन (biomagnification) के लिए मुख्य रूप से जिम्मेदार है?

Which of the following events is considered a major turning point that fueled Indian nationalism during British rule due to its brutal nature and widespread condemnation?

Which of the following events is considered the first major peasant uprising against the British in India?