processes pg

Question 1

hydraulic action def

Answer 1

the power of the water forces its way into cracks in bed and banks breaking them up

Question 2

abrasion def

Answer 2

rocks are rolled or dragged along river bed wearing away at river bed like sandpaper

Question 3

corrosion def

Answer 3

the minerals in rock are dissolved in water that is slightly acidic and carried away in solution

Question 4

attrition def

Answer 4

rocks and pebbles strike each other breaking up and smoothing them

Question 5

what are the erosional processes?

Answer 5

hydraulic action
abrasion
corrosion
attrition

Question 6

what are the transportation methods in a river

Answer 6

traction
saltation
suspension
solution

Question 7

traction def

Answer 7

large pebbles or boulders roll along river bed

Question 8

saltation def

Answer 8

bouncing or hopping movement of sands and gravel along the riverbed. sediment picked up and dropped according to speed of current

Question 9

suspension def

Answer 9

finer sand and silt carried along the flow

Question 10

solution def

Answer 10

minerals dissolved in the water such as those contained in limestone rocks

Question 11

load category names

Answer 11

bed load:
coarse fragments moved slowly and under high energy conditions

suspension load:
particles of sand silt and clay transported in flow of river

solution/solute load:
dissolved material carried in water