Non- metallic and conventional minerals [coal,petroleum and natural gas), (c) hydro electricity and non conventional sources of energy (Solar, Wind, bio-gas),(d) energy sources Their distribution and conservation.

  Petroleum, natural gas, coal, nitrogen, uranium and water power are examples of conventional sources of energy. They’re also called non-renewable sources of energy and are mainly fossil fuels, except water power. Rising growth of population has created a tremendous pressure on the conventional resources of energy and thus the concept of sustainable development get prominent … Read more Non- metallic and conventional minerals [coal,petroleum and natural gas), (c) hydro electricity and non conventional sources of energy (Solar, Wind, bio-gas),(d) energy sources Their distribution and conservation.

 Horizontal and vertical distribution of temperature, inversion of temperature

  The temperature is the measurement in degrees of how hot (or cold) a thing (or a place) is. The temperature of the atmosphere is not same across the Earth. It varies in spatial and temporal dimensions. The temperature of a place depends largely on the insolation received by that place. The interaction of insolation … Read more  Horizontal and vertical distribution of temperature, inversion of temperature