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1. Gross Cropped Area (GCA) is the total area sown once as well as more than once in a particular year. When the crop is sown on a piece of land for twice, the area is counted twice in GCA. On the other hand, Net Sown Area is the area sown with crops but is counted only once.
2. Khadir or Khadar plains are those that are low-lying next to a river. Khadar areas are prone to flooding and sometimes include portions of former river-beds that became available for agriculture when a river changed course. ... Bangar plains are more upland, and consist of older alluvial soil.
3. Soil erosion is chcked by contour ploughing and strip copping.
4. Per capita income (PCI) or average income measures the average income earned per person in a given area (city, region, country, etc.) in a specified year. It is calculated by dividing the area's total income by its total population. Per capita income is national income divided by population size.
5. Infant mortality rate (IMR) is the number of deaths per 1,000 live births of children under one year of age. The rate for a given region is the number of children dying under one year of age, divided by the number of live births during the year, multiplied by 1,000.
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