Drainage Basin

The boundary of a river basin is called the

• A. watershed
• B. catchment area
• C. main stream
• D. tributaries

Which of the following are the factors affecting the water cycle? 1. Permeability of soil 2. Amount of insolation 3. Presence of arable farmland

• (1) and (2) only
• (1) and (3) only
• (2) and (3) only
• (1), (2) and (3)

What are the characteristics of a river with high energy? (1) Large amount of discharge (2) Steep slope (3) Deep and wide channel

• (1) and (2) only
• (1) and (3) only
• (2) and (3) only
• (1), (2) and (3)

The figure below shows some features of a drainage basin. Which of the following match is INCORRECT?

• A Tributary
• B Main river
• C Confluence
• D Source of river

The figure below shows a drainage basin. What is the order of the drainage basin?

• Second order
• Third order
• Fourth order
• Fifth order

Which of the following areas have more overland flow? 1. area with steeper slope 2. Area with denser tree cover 3. Area with higher level of urbanisation

• 1 and 2 only
• 1 and 3 only
• 2 and 3 only
• 1, 2 and 3

Which of the following descriptions about fluvial erosion processes is/are INCORRECT?

• A. (1) only
• B. (2) only
• C. (1) and (3) only
• D. (2) and (3) only

Which of the following descriptions about sorting of river loads are correct? (1) Larger rock fragments will settle first as they are heavier. (2) The formation of delta involves sorting of sediments. (3) Sorting takes place during transportation and deposition of sediments.

• A. (1) and (2) only
• B. (1) and (3) only
• C. (2) and (3) only
• D. (1), (2) and (3)

Which of the following graphs correctly shows the relationship between discharge (y-axis) and the distance from the river source (x-axis)?

• A
• B
• C
• D

The photograph below shows a river at the upper course. Which of the following is evidence showing that the river is at the upper course? 1 Narrow river channel 2 Large sediment size 3 Presence of a gorge

• A 1 and 2 only
• B 1 and 3 only
• C 2 and 3 only
• D 1, 2 and 3