When studying 'Agriculture' in Class 10 Geography, crops are divided into commercial crops (like cotton) and food crops. The absolute foundation of the global food supply—and human civilization itself—rests entirely on one category: Food Grains.
Together, just three cereal grains—Rice, Wheat, and Corn—provide more than 50% of all the calories consumed by the entire human race.
The ancient Romans worshipped Ceres, the Goddess of Agriculture. This is where the English word 'Cereals' comes from.
In agriculture, food grains are strictly divided into two botanical categories:
A. Cereals (The Grass Family) These are grains that grow on tall, grass-like plants. They are the primary source of carbohydrates in the world.
B. Pulses (The Legume Family) These are seeds that grow inside 'pods' (like a pea pod). They are the primary source of protein for the world's vegetarian population.
In the 1960s, India faced severe famines and did not have enough food grains to feed its massive population. The government launched the Green Revolution. By introducing modern irrigation, chemical fertilizers, and High Yielding Variety (HYV) seeds for Wheat and Rice, India's food grain production exploded, making the country completely self-sufficient.
No. Sugarcane is a 'Cash Crop' or 'Commercial Crop'. You do not harvest dry seeds from it; you crush its wet stem to extract sweet juice.
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