• In 1976 an earthquake in China killed over 250.000 people .has suffered some Than 80.000 deaths. In an average year , earthquakes kill 10.000 people has suffered some Scientists keep >Betraying to find ways to predict earthquakes. Currently under study use & main methods of predicting when and where the next BIG ONE will occur ’what is the.
Type of this introduction
• Surprising Statistics or facts introduction.
مو مفروض يكون
1- Historical background introduction ؟