MEANINGS / DEFINITIONS

   MEANINGS / DEFINITIONS :

  RockThe solid minerals forming part of the surface of the earth

  OreA rock from which minerals are mined .

 Ferrous mineralsOnes containing iron as a constituent .

 Petroleum Thick layer liquid fossil fuel .

 Solar energy Heat and light energy captured from the sun .

  Wind energyEnergy possessed by moving air .

  Geothermal energyEnergy obtained from inside of the earth .

  Tidal energyEnergy generated from tides .

  Metallic minerals − minerals that contain metals

  Drilling − a form of extraction

  Quarrying − removing minerals by digging on the top layers o the soil

  Extraction − process of removing something

Thermal power − electricity obtained from coal

Nuclear − energy possessed by the nuclei of an atom

Geothermal − heat energy got from inside the earth

Hydel − energy possessed by river water

Mining − extraction of mineralsfrom under the earth

Biogas − gas got by decoposition of organic waste