Erosion Processes

Question 0

1. Detachment: By physical or biological processes - (5)

Answer 0

Hydraulic action.
Frost shattering. 
Salt weathering.
Attrition.
Abrasion.

Question 1

1. Detachment: Rock is

Answer 1

Released to become an unattached rock fragment.

Question 2

2. Entrainment: lifts particles off

Answer 2

The surface and sets them in motion.

Question 3

2. Entrainment: Fine particles are difficult to

Answer 3

Entrain as they have strong coherent forces, greater than friction and gravity.

Question 4

2. Entrainment: Resisted by

Answer 4

Friction between the particle & surface and by gravity.

Question 5

2. Entrainment: Once particle is in motion,

Answer 5

Less force is required to transport it than initially achieve entrainment as it has smaller frictional resistance.

Question 6

2. Entrainment: more energy is required for

Answer 6

Larger particles.

Question 7

3. Transport: reflects conflict between

Answer 7

The pull of gravity.

Question 8

3. Transport: Depends on the

Answer 8

Mass & size of the particle and the speed of transport.

Question 9

3. Transport: By (4)

Answer 9

Traction,
Saltation,
Solution,
Suspension.

Question 10

4. Deposition: Transport stops because of

Answer 10

Reduction in speed and because of increase in resistance of particles.

Question 11

4. Deposition: Flucculation -

Answer 11

Solid particles suspended in liquid form loose aggregations or soft flakes.

Question 12

4. Deposition: Precipitation -

Answer 12

Dissolved substances become solid and settle out.