river terminology part 1

Question 1

abrasion and attrition

Answer 1

abrasion is cutting process of rocks while attrition makes rocks rounder and smoother

Question 2

abstraction

Answer 2

when the entire watershed moves backwards

Question 3

braided channel

Answer 3

river divides , sub divides and rejoins and creates sandbanks

Question 4

antecedent stream

Answer 4

old rive that maintains its course despite flowing on newer landscape

Question 5

centripetal drainage pattern

Answer 5

water flows inward towards low lying area

Question 6

confluence

Answer 6

where two rivers join together

Question 7

baseflow

Answer 7

water flowing through the ground towards the river

Question 8

bed load

Answer 8

larger rocks that roll down the river mostly in upper course

Question 9

bluff

Answer 9

dry /higher land on the edge of the flood plain

Question 10

cross profile

Answer 10

a view cut across a river

Question 11

delta

Answer 11

triangular deposition feature at river mouth

Question 12

dendritic stream pattern

Answer 12

branch shaped pattern on equally resistant rock , especially horizontal sedimentary rock

Question 13

direct runoff

Answer 13

water running off over the surface

Question 14

drainage basin

Answer 14

total are drained by a river system

Question 15

drainage density

Answer 15

length of all the streams divided by the are (either fine or coarse texture)