Q1. The spread of which revolution enabled India to achieve self-sufficiency in food grains?
Explanation
The Green Revolution raised India’s food-grain production through high-yielding varieties of wheat and rice, irrigation, fertilisers, pesticides, and better farm practices. This is why it is linked with self-sufficiency in food grains. The Yellow Revolution concerns oilseeds, not staple cereals. The Blue Revolution is associated with fisheries and aquaculture. The White Revolution relates to milk production and the dairy sector. Since the question specifically asks about food grains, the Green Revolution fits the substance of the stem.
