On a Floodplain,the Sediment Grains Away from the Main River

question 40

Multiple Choice

On a floodplain,the sediment grains away from the main river channel are

• A)coarse-grained sand and gravels.
• B)fine-grained silts and clays.
• C)well-sorted and well-rounded sand particles.
• D)all of these

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Definitions:

Earthquake Risk

Earthquake risk refers to the probability of earthquakes occurring in a region and the potential damage they can cause to life, property, and the environment.

Modified Mercalli Intensity

A scale for measuring the intensity of an earthquake based on its observed effects on people, buildings, and the Earth's surface.

Richter Magnitude

The Richter magnitude scale is a numeric scale used to express the energy released by an earthquake, with each whole number representing a tenfold increase in measured amplitude.

P-Waves

Primary waves, or compressional waves, are the fastest seismic waves and can travel through both solid and liquid layers of the Earth.