Tuesday, March 16, 2010

The advantages and disadvantages of development

Air-conditioner
Advantages
  • In serious heat waves, air conditioning can save the lives of the elderly.
  • Can change the temperature of the rooms in no time.
  • Air conditioning can have a positive effect on sufferers or allergies and asthma.

  • Disadvantages
  • Emits ozone-depleting refrigerant.
  • Can occasionally promote the growth and spread of microorganisms, such as Legionella Pneumophila .
  • Dry skin problem due to dehydration.

  • Mobile Phone
    Advantages
  • Interpersonal communication is made simple and convenient.
  • Listening to songs, watching videos and playing games
  • Reminders for important events appointment and meeting recorded in the memo.
    • Disadvantages
    • Harmful health effects
    • Negative effect on the environmnt
    • Increase in theft case

    • Car
      Advantages
    • Shorten time and improve travelling condition.
    • Promote the growth of nnational economy.
    • sae the time.
      • Disadvantages
      • Environmental Pollution.
      • Traffic congestion.
      • Accident problem.
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