Riverine Geomorphic Processes and Landforms

Description: This quiz is designed to assess your understanding of riverine geomorphic processes and landforms. These processes shape the physical characteristics of rivers and their surrounding landscapes. The questions cover various aspects of riverine geomorphology, including erosion, deposition, sediment transport, and the formation of different landforms.
Number of Questions: 15
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Tags: riverine geomorphology fluvial processes landforms erosion deposition sediment transport
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Which of the following is NOT a primary agent of riverine erosion?

  1. Hydraulic action

  2. Abrasion

  3. Attrition

  4. Chemical weathering


Correct Option: D
Explanation:

Chemical weathering is not a primary agent of riverine erosion. It is a process that occurs over long periods of time and involves the breakdown of rocks and minerals by chemical reactions with water, oxygen, and other substances.

The process by which sediment is picked up and transported by a river is known as:

  1. Erosion

  2. Deposition

  3. Sediment transport

  4. Weathering


Correct Option: C
Explanation:

Sediment transport is the process by which sediment is picked up and transported by a river. It is driven by the force of the flowing water and the size, shape, and density of the sediment particles.

Which of the following is NOT a type of riverine depositional landform?

  1. Floodplain

  2. Delta

  3. Meander

  4. Natural levee


Correct Option: C
Explanation:

Meanders are sinuous bends in a river channel. They are not depositional landforms, but rather erosional features that form as a result of the lateral migration of the river channel.

The process by which sediment is deposited from a river is known as:

  1. Erosion

  2. Deposition

  3. Sediment transport

  4. Weathering


Correct Option: B
Explanation:

Deposition is the process by which sediment is deposited from a river. It occurs when the velocity of the flowing water decreases, causing the sediment particles to settle out of suspension.

Which of the following is NOT a factor that influences the formation of riverine landforms?

  1. Discharge

  2. Slope

  3. Sediment load

  4. Climate


Correct Option: D
Explanation:

Climate is not a direct factor that influences the formation of riverine landforms. However, it can indirectly influence these landforms by affecting the discharge, slope, and sediment load of a river.

The term 'alluvial' refers to:

  1. Material deposited by a river

  2. Material deposited by a glacier

  3. Material deposited by wind

  4. Material deposited by waves


Correct Option: A
Explanation:

Alluvial refers to material deposited by a river. It is typically composed of sand, silt, and clay, and can also contain gravel and boulders.

Which of the following is NOT a type of riverine erosional landform?

  1. Gorge

  2. Canyon

  3. Floodplain

  4. Valley


Correct Option: C
Explanation:

Floodplains are depositional landforms, not erosional landforms. They are formed by the deposition of sediment during floods.

The process by which a river channel migrates laterally is known as:

  1. Erosion

  2. Deposition

  3. Lateral migration

  4. Sediment transport


Correct Option: C
Explanation:

Lateral migration is the process by which a river channel migrates laterally. It occurs as a result of the erosion of the river bank on one side and the deposition of sediment on the other side.

Which of the following is NOT a type of riverine landform created by erosion?

  1. Gorge

  2. Canyon

  3. Delta

  4. Valley


Correct Option: C
Explanation:

Deltas are depositional landforms, not erosional landforms. They are formed by the deposition of sediment at the mouth of a river.

The term 'braided river' refers to:

  1. A river with a single, meandering channel

  2. A river with multiple, interconnected channels

  3. A river with a wide, shallow channel

  4. A river with a narrow, deep channel


Correct Option: B
Explanation:

A braided river is a river with multiple, interconnected channels. It is typically found in areas with a high sediment load and a steep gradient.

Which of the following is NOT a type of riverine landform created by deposition?

  1. Floodplain

  2. Delta

  3. Gorge

  4. Natural levee


Correct Option: C
Explanation:

Gorges are erosional landforms, not depositional landforms. They are formed by the downcutting of a river into the bedrock.

The process by which sediment is sorted by size and shape is known as:

  1. Erosion

  2. Deposition

  3. Sediment sorting

  4. Weathering


Correct Option: C
Explanation:

Sediment sorting is the process by which sediment is sorted by size and shape. It occurs as a result of the differential transport of sediment particles by the flowing water.

Which of the following is NOT a type of riverine landform created by lateral migration?

  1. Meander

  2. Oxbow lake

  3. Floodplain

  4. Natural levee


Correct Option: C
Explanation:

Floodplains are depositional landforms, not erosional landforms. They are formed by the deposition of sediment during floods.

The term 'point bar' refers to:

  1. A sediment deposit on the inside of a river bend

  2. A sediment deposit on the outside of a river bend

  3. A sediment deposit in the middle of a river channel

  4. A sediment deposit at the mouth of a river


Correct Option: A
Explanation:

A point bar is a sediment deposit on the inside of a river bend. It is formed by the deposition of sediment as the river flows around the bend.

Which of the following is NOT a type of riverine landform created by downcutting?

  1. Gorge

  2. Canyon

  3. Floodplain

  4. Valley


Correct Option: C
Explanation:

Floodplains are depositional landforms, not erosional landforms. They are formed by the deposition of sediment during floods.

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