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)