Substances containing living microorganisms that, when applied to seeds, plant surfaces, or soil, colonize the rhizosphere and promote growth by increasing the supply of primary nutrients are called:

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?

Which of the following viceroys of India is associated with the 'Ilbert Bill' controversy?