The Interior Of The Earth

How do we measure magnitude of earthquake?

• Richter Scale

• Mercalli Scale

• Seismograph

• barometer

How do we measure intensity of earthquake?

• Richter Scale

• Mercalli Scale

• Barometer

• Seismograph

Fast moving waves which reach the earth earliest are called:

• Surface waves

• S-waves

• P-waves

• Alpha waves

The upper portion of mantle is called____________

• Asthenosphere

• Crust

• Lithosphere

• Core

Core is made up of _______________

• Iron and Magnesium

• Iron and Silicon

• Nickel and Iron

• Nickel and Magnesium

Which one of the following earthquake waves is more destructive?

• P-waves

• S-waves

• Surface waves

• None of the above

Which type of volcanic eruptions have caused Deccan Trap formations?

• Shield

• Flood

• Composite

• Caldera

Shadow zone for both P-waves and S-waves is _____________ away from epicentre

• 105 degrees-145 degrees

• Beyond 145 degrees

• Both are true

• None of them are true

Most destructive volcano is _____________

• Shield

• Fold

• Caldera

• Composite