long profile of river

Question 1

describe the conditions of the upper course

Answer 1

• the river is narrow and shallow
• has kinetic energy but is waste
• little erosion happens
• turbulent flow ( a lot of energy is wasted)
• vertical erosion erodes the river bed

Question 2

describe the conditions of the middle course

Answer 2

• the river is wider and deeper
• lots of energy (less is being wasted)
• more erosion happens
• lateral erosion breaks down the river banks
• laminar flow means the energy is concentrated
• In some places the river flow slows due to deposition

Question 3

describe the conditions of the lower course

Answer 3

• river is widest and deepest here (expect from estuary)
• laminar flow
• deposition (especially near the mouth of the river)
• energy levels slow