D scarp waves TRUE/FALSE _1. P-waves are also called compressional waves. __2. A

Question

D scarp waves TRUE/FALSE _1. P-waves are also called compressional waves. __2. According to elastic rebound theory, rocks deform and bend. When their internal strength is exceeded they rupture. This energy release is called an earthquake. 3.We know that the mantle is not molten because P-waves can travel through it. 4. The increase of temperature with depth is known as the geothermal gradient. 5. The two major types of seismic waves are body waves and surface waves. 6. Seismologists most commonly report the intensity of an earthquake using the Richter Scale. 7, Landslides and ground liquefaction are significant sources of danger created by earthquakes. 8. Seismic waves that cause a rolling or swaying motion of the surface of the ground are called surface waves.

Explanation / Answer

1. TRUE P waves are also know as compressional waves.

2. TRUE elastic rebound theory explain how during an earthquake energy is spread.

3. FALSE, P waves can pass through solids and liquids, but S waves can travel through only solids. Here P waves only doesn't support the fact about mantle is not molten.

4. TRUE increase in temperature with depth is called geothermal gradient.

5. TRUE

6. FALSE intensity of the earthquake measured by mercallis scale whereas magnitude of the earth quake is measured by ritcher scale.

7. TRUE

8. TRUE surface waves like Rayleigh and love waves show rolling and swaying motion.

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