Processes of erosion

Question 1

Deflation

Answer 1

(action of wind)
Lifting and transporting light particles
Leaving course grain behind
Forms sand dunes and deflation hollows

Question 2

Abrasion (wind)

Answer 2

(action of wind)
Wind blows grains at high speed
Sandblast rocks surface
Can create ventifacts

Question 3

Abrasion (water)

Answer 3

(action of water)
Wearing down of rocks by friction
Rate of abrasion depends on hardness and mass of rock, as well velocity of flow.

Question 4

Hydraulic action

Answer 4

(action of water)
The force of running water weakens rocks
Leading to the removal of rocks

Question 5

Attrition

Answer 5

(action of water)
Rocks in a stream collide with one another causing fragmentation
Causes rounding and smoothing of sediment

Question 6

Corrosion

Answer 6

(action of water)
Water is good solvent
Converts metals to more stable compounds
CO2 gets converted to carbonic acid 
Can dissolve limestone in a similar way