Our Changing Earth

Which force acts in the Interior of the Earth

• Endogenic Force

• Exogenic Force

• None of these

• Both (A) and (B)

Which forces work on the surface of the Earth

• Endogenic Force

• Exogenic Force

• None of these

• Both (A) and (B)

Mt .......................... is a dormant volcano

• Etna

• Vesuvies

• Kilmanjaro

• none of these

P waves travel at a speed of

• 6 km/s

• 8 km/s

• 20 km/s

• 32 km/m

Secondary waves are also called as ...................

• Push waves

• Surface waves

• Shock waves

• None of these

........................ waves do not pass through liquids

• Primary Waves

• Secondary Waves

• Surface Waves

• Push Waves

The Experts who study the pattern of the Earthquakes are called ...........................

• Scientists

• Seismologists

• Artists

• Geologists

................... is an Instruments which records the intensity of the Earthquake waves

• Richter Scale

• Seimograph

• Barometer

• none of these

The Richter scale was Invented in

• 1945

• 1935

• 1947

• 2006

According to an Estimate ...................................... Earthquakes are recorded every year

• 2 million

• 2.5 million

• 4 million

• 1 million