पृथ्वी के कोर (केन्द्र) में मुख्य रूप से कौन-सा चुंबकीय पदार्थ पाया जाता 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?