Some Short Questions Of Interior Of The Earth are presented below –
1. The age of the earth?
Approximately 4.543 billion years.
2. what portion of the earth’s volume is occupied by the crust?
Less than 1%.
3. What portion of the earth’s volume is occupied by the mantle?
4. Which layer of the earth’s interior has the lowest density?
5.Which layer of the earth’s interior has the highest density?
6.Which layer of the earth’s interior is liquid?
7.Which layer produces the earth’s magnetic field?
8.What is the lithosphere composed of?
The crust and uppermost mantle.
9.What property distinguishes the earth’s crust, mantle and core?
10.What keeps the lithosphere from melting (in contrast to the asthenosphere)?
11.What keeps the mesosphere from melting(in contrast to asthenosphere)?
12.What keeps the outer core molten(in contrast to mantle)?
Minerals with lowest melting temperature.
13.What keeps the inner core solid(in contrast to outer core)?
14.Through which layer of the earth do P waves travel faster?
15.In which depth Lehman found the discontinuity?
16.Which mineral make the asthenosphere plastic layer?
17.‘Crust of transition’ where is situated?
Edge of the continent.
18.What layer has 2/3 of earth’s mass?
19.What causes the plates to move?
Convection currents in the mantle.
20.If the earth was a peach the pit would be the
21.What is the approximate distance from the surface to the centre of the earth?
22.When seismic wave pass through the boundary between two different minerals………
Wave refract, wave reflect and wave change their velocity.
23.How long does it take P wave to travel through the earth?
24.In a deep mine temperature increases at the rate of……..
30°C per kilometre.
25. At what temperature do the materials loose their permanent magnetism?
26.The earth magnetic field reverses itself roughly every………
27.What region of the earth take the greatest volume?
28.What region mechanical behaviour is found at the part of the earth?
29.How fast do P wave travel to granite?
30.The thickness of the lithosphere is approximately…..
31.An ophiolite may not include a piece of …………..
32.Which region primarily consists of olivine and pyroxene?
Continental crust Felsic silicate minerals (granite)
Oceanic crust Mafic silicate minerals(basalt)
Mantle Ultramafic silicate minerals(peridotite)
Outer core Iron and nickel
Inner core Iron and nickel