2.1

    Cards (7)

    • 2.2.1 Energy Resources that we use
      -Energy resources are nature resources used for generating power.
    • -Major Energy Resources in World
      ➀Coal(Tube that hv black smoke/black山) ➁Natural gas(tall tube that hv white smoke) ➂Oil/Petroleum石油(a big thing on sea) : These are formed underground from the remains of dead plants and animals from millions of years ago
      ➃Nuclear power核電(fat tube &橢圓形柱): It is produced by the nuclear reaction of some radioactive elements, e.g. uranium
      ➄Fuelwood(樹) : It is wood cut from trees
      ➅Biofuel(植物or花 ): It is produced from plant and animal products or waste
    • -Major Energy Resources in World
      ➆Solar power : It is converted from sunlight
      ➇Wind power : It is generated when wind blows
      ➈Hydroelectric power (HEP) (a wall in high point to ground): It is produced by water falling from a great height
      ➉Tidal power (a road connect two side): It is produced by the changing levels of tides
      ⑪Wave power (near beach): It is converted from the energy of sea waves
      ⑫Geothermal power( 管連住地底): It is produced by the intense heat from the molten rock beneath the earth's crust
    • 2.2.2 Most widely used Energy Resources
      -Oil + Coal + Natural gas {Fossil fuels} about 84% of the Energy consumption in the world
    • 2.2.3 wha is Fossil fuels?
      A.Formation
      -formed underground of dead plants & animals from millions of years ago (Although they are different forms & colours, but formed in the same way)
    • 2.2.3 wha is Fossil fuels?
      B.Benefits
      • Fossil fuels is most widely used Energy Resources,∵?
       ~coal is cheap to mine
       ~drilling techniques of oil & natural gas are mature
       ~produced much energy & are convenient to use
       ~can be transported to most areas at a low cost
    • 2.2.3 wha is Fossil fuels?
      C.Distribution
      -The global distribution of fossil fuels is uneven
      -coal mainly found in Asia Pacific, Russia & USA 
      -oil & natural gas are heavily concentrated集中 in middle East
      -Russia & North America are imported reserves 
      (*Russia[large reserves of 3 types],China,India,Australia,USA=largest reserves of coal)