INTERIOR OF THE EARTH

Example of direct sources to study about the interior of earth is

• Volcanic eruption

• Magnetic field

• Seismic activity

• Meteors from space

Types of body waves are

• D and P waves

• F and S waves

• P and S waves

• S and T waves

Focus of an earthquake is known as

• Epicentre

• Hypocentre

• Seismocentre

• Microcentre

Maximum Depth of lithosphere from the surface of earth is

• 500 km

• 100 km

• 200 km

• 150 km

S waves travels only through

• Liquid materials

• Solid materials

• Solid,liquid and gaseous

• Gaseous materials

P waves travel through

• Gaseous materials

• Liquid materials

• Solid materials

• All of these

Eathquake is caused due to

• Release of energy from rock faults

• Release of energy from lava

• Release of energy from aluminium

• None of these

Specific area where the waves are not reported are known as

• No wave zone

• Non earthquake zone

• Special waves zone

• Shadow zone

Which of the following is not the type of earthquake

• Volcanic earthquake

• Tectonic earthquake

• Rock earthquake

• Reservoir induced earthquakes

Crust and uppermost part of mantle is known as

• Asthenosphere

• Toposphere

• Lithosphere

• Ionosphere