The Patterning on the Ground Surface in Periglacial Regions Associated

question 38

Multiple Choice

The patterning on the ground surface in periglacial regions associated with silty alluvium such as found in floodplains is referred to as:

• A)solifluction ground
• B)pingos
• C)ice-wedge polygons
• D)thermokarst
• E)thermal erosion

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Definitions:

Acetic Anhydride

A chemical compound with the formula (CH3CO)2O, used as a reagent in organic synthesis for the acetylation of alcohols or amines.

Time-series Data

Data points collected or recorded at successive times, often with equal intervals between them.

Cross-sectional Data

A type of data collected by observing many subjects at the same point of time or without regard to differences in time.

Synchronous Data

Data that is collected or updated at the same time across the system or in a coordinated manner.