True or false, tension is a natural force that causes folds in earth’s surfaces?

Question

True or false, tension is a natural force that causes folds in earth’s surfaces? True or false, Shearing occurs when rocks push at right angles toward one another? True or false, the location of an earthquake can be judged by data from several seismographic stations? True or false, all earthquake body waves travel through earth’s crust?
True or false, tension is a natural force that causes folds in earth’s surfaces? True or false, Shearing occurs when rocks push at right angles toward one another? True or false, the location of an earthquake can be judged by data from several seismographic stations? True or false, all earthquake body waves travel through earth’s crust?
True or false, Shearing occurs when rocks push at right angles toward one another? True or false, the location of an earthquake can be judged by data from several seismographic stations? True or false, all earthquake body waves travel through earth’s crust?

Explanation / Answer

1) Tension is a natural force that causes folds in earth’s surfaces? False, because folds are caused due to stress.

2) Shearing occurs when rocks push at right angles toward one another? True, because shearing forces slide rocks past each other horizontally, and this likewise can cause movement along a fault.

3)  The location of an earthquake can be judged by data from several seismographic stations? False, because stations can tell the location of epicenter of earthquake.

4)  All earthquake body waves travel through earth’s crust? True because earthquakes generate three types of seismic waves: P (primary) waves, S (secondary) waves and surface waves, which arrive at seismic recording stations one after another. Both P and S waves penetrate the interior of the Earth while surface waves do not. Due to this, P and S waves are known as body waves.

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