The internal movements that affect the surface of the earth mostly take place in the upper portion of the ----------.
Which of the following wave(s) of earthquake can travel through all the layers of the interior of the earth ?
The slow earth movements affect vast areas, these movements take place in a ---------- or ---------- directions.
As energy moves through the interior of the earth, soft rocks are subjected to ----------.
remain as is
What is the density of materials in the mantle layer ?
2 to 3 g/cm3
6 to 7.5 g/cm3
6 to 8 g/cm3
3 to 5.5 g/cm3
State True or False: "The temperature rises towards the core."
Earthquakes, ----------, forming of mountains and ---------- are the effects of earth movements.
(a) sound waves (b) magnetic fields (c) volcanic eruptions (d) continents
b, c, d
In hard rock layers, the compression caused by the converging energy waves can also lead to ----------.
A tremendous amount of energy is given out by the ---------- elements in the mantle.
When a portion of the crust between two parallel faults is raised up, it appears as a block, which is called as ----------.
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