Answer the following :
Write the possible causes of earthquake .

Questions based on paragraph : Earthquakes refers to sudden vibrations on the Earth's surface and shaking of the earth . This leads to generation of seismic waves causing tremors or shaking of Earth's surface . The focal point of earthquake is the point below the epicenter on the earth surface . the major loss occurs near the area where strong convulsions or waves first reach the epicenter . earthquakes can be mild , uauslly occuring in larger numbers of intensified ( acute) , occuring rarely . the magnitude of the earthquake is measured in richter scale . : Based on the given paragraph answer the following questions : Write any two causes of earthquake ?

Answer the following : What are the specifications of an earthquake -proof building ?

Answer the following : What are the causes of landslide ?

Answer the following question: Write the uses of natural dye.

Answer the following : If a crowd gathers at the place of earthquake , what would be the difficulties in relief work ?

Answer the following : Write any three precautionary measures that should be followed at the time of earthquake .

Answer the following : Write short note on uses of periscope ?

Choose the correct alternative : From the following which one is NOT the cause of earthquake ?

Answer the following questions: Write the valencie of the following Carbon