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secondary sector:includes economic activitiesconcerned whith transforming…

- - - - labour force
      - goods to mundertake production (buildings, machinary, money)
      - employees
      - technology or tecnical knowledge or methods employed in productions
- - - - irregular supply
      - it transforms wind into electricity
    - - it use internal heat of Earth to produce heat and electricity
      - it is only accesible at very especific areas
    - - irreular supply
      - it use sun lights to produce heat and electricity
    - - it produce heat and electricity
      - problem CO2
      - it is provide by agricultural lives tock and forestry by products organic materials
  - - - it is also burn in power stations
      - i produce a lot of bio products(petrol, plastic, tar)
      - origin similar as coal
    - - used to produce electricity in power estations and heat in central heating and kitchens
      - problem:polution
      - same origin as oil
    - - it is burned in power stations to obtein electricity and heat
      - it produces a lot of contamination
      - mineral created by descomposition of organic remains
    - - It produce electricity
      - problem: radioactivity
      - It uses uranium with it is fusionlarge amounts of energy are release