Extremely slow downslope motion of soil or of rock fragments under gravity because of continual or seasonal agitation of particles is called

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Q: 15 (IES/2002)
Extremely slow downslope motion of soil or of rock fragments under gravity because of continual or seasonal agitation of particles is called

question_subject: 

Geography

question_exam: 

IES

stats: 

0,21,34,21,9,4,21

keywords: 

{'slow downslope motion': [0, 0, 1, 0], 'rock fragments': [0, 0, 1, 0], 'earth flow': [0, 0, 1, 0], 'soil': [7, 0, 4, 7], 'gravity': [0, 0, 0, 6], 'saltation': [0, 0, 1, 0], 'particles': [1, 0, 5, 16], 'solifluction': [0, 0, 1, 0], 'seasonal agitation': [0, 0, 1, 0]}

The correct answer is option 1 - creep.

Creep refers to the extremely slow downslope movement of soil or rock fragments under the force of gravity. This movement occurs due to continual or seasonal agitation of particles.

Option 2 - earth flow, refers to a faster downslope movement of soil or rock fragments, typically due to saturation with water. This movement is characterized by a fluid-like flow.

Option 3 - saltation, refers to the movement of particles in a bouncing or hopping motion, typically seen in the transport of sand or small pebbles by wind or water.

Option 4 - solifluction, refers to the slow movement of waterlogged soil or sediment over a frozen subsurface. This is typically seen in areas with permafrost or in colder climates.

Overall, option 1 is the correct answer as it best describes the slow downslope motion of soil or rock fragments under gravity due to continual or seasonal agitation of particles.