river tees landforms

Question 1

upper course of the river

Answer 1

river flows over hard, impermeable rocks. the valley has steep sides forming a v shape. the river channel is shallow and rocky and the river is turbulent and clear.

Question 2

land form in upper course

Answer 2

high force waterfall and gorge, as well as rapids and potholes

Question 3

main erosion processes in upper course

Answer 3

-hydraulic action
-abrasion
-corrosion
-attrition

Question 4

waterfall rock type

Answer 4

-very hard rock at the top (Whinsill)
-below is soft rock (limestone)

Question 5

potholes

Answer 5

pebbles trapped in hollows in the rock and the rivers flow has caused the. pebbles to swirl around in the hollow making it deeper. pebbles grind and scrape by abrasion

Question 6

middle course of river tees near Yarm

Answer 6

-gradient becomes less steep
- river begins to erode sideways
-meanders begin to form

Question 7

lower course of river tees

Answer 7

-large meanders which have formed ox bow lakes
-flooding caused levee to form

Question 8

mouth of river tees

Answer 8

-wide estuary with mudflats and sandbanks

Question 9

aims of the river management

Answer 9

• reduce flooding
  -improve water supply
  -improve water quality