Questions

Buoyancy or Upthrust, is an upward force exerted by a fluid that opposes the weight of an immersed object.

In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid.

In high plateaus of the Hot  Wet Equatorial Region the temperature is very much lower and so the "Ecuador type' of climate develops typically on the high plateau of Ecuador at an elevation of about 2430 to 3050 meter. Because of the pleasant average temperature of, 13oC. This is described as the "Land of eternal spring".

The caste system in India divides Hindus into four main categories - Brahmins, Kshatriyas, Vaishyas and the Shudras. The main castes were further divided into about 3,000 castes and 25,000 sub-castes, each based on their specific occupation.