Plate tectonics

  The uppermost outer solid and rigid layer of the earth is called crust. Its thickness varies considerably. It is as little as 5 km thick beneath the oceans at some places but under some mountain ranges it extends upto a depth of 700km. Below the crust denser rocks are found, known as mantle crust. … Read more

POULTRY FARMING and SILVER REVOLUTION IN INDIA

POULTRY FARMING (SILVER REVOLUTION) IN INDIA practice of raising poultry, such as chickens, turkeys, ducks, geese, as a subcategory of animal husbandry, for the purpose of farming meat or eggs for food. requires small capital and provides additional income and job opportunities to a large number of rural population in the shortest possible time. The … Read more