Geography Quiz GG1113
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Questions and Answers

The land drained by a network of streams is called a:

  • Meander
  • Canyon
  • Delta
  • Watershed (correct)

Erosion occurring via intense scouring in an upstream direction opposite to flow direction in the uppermost part of a stream/channel is called:

  • Debris flow
  • Downcutting
  • Headwater erosion (correct)
  • Undercutting

Smaller streams joining the main channel in the upper reaches of a stream are called:

  • Distributaries
  • Tributaries (correct)
  • Slump
  • Avalanche

The drainage pattern produced by rivers when flowing over uniform substrate that look like branches connecting to the trunk of a tree is known as:

<p>Dendritic (C)</p> Signup and view all the answers

What is the difference between permanent streams and ephemeral streams?

<p>Permanent streams flow year-round. Ephemeral streams flow only after periods of rain.</p> Signup and view all the answers

Discharge is the volume of water flowing through a channel at a specific point in time.

<p>True (A)</p> Signup and view all the answers

The drainage pattern produced by channels when flowing over alternating hard and soft rocks and joining the main channel at approximately right angles is known as:

<p>Trellis (D)</p> Signup and view all the answers

The mode of transport when a sediment move through a channel in the form of alternate jumping it is called:

<p>Saltation (B)</p> Signup and view all the answers

The maximum particle size that can be carried by a stream is called its':

<p>Competence (D)</p> Signup and view all the answers

The total sediments that can be carried by a stream is called its':

<p>Capacity (A)</p> Signup and view all the answers

Near the headwater source of the stream, the gradient is ______ , discharge is ______ , sediments are ______ , and the channel is ______ and rocky.

<p>Steep, low, coarse, straight (D)</p> Signup and view all the answers

A slower flow has lower competence.

<p>True (A)</p> Signup and view all the answers

The competence of a stream depends on:

<p>Flow speed and viscosity (D)</p> Signup and view all the answers

The Nile delta is an example of _______ delta:

<p>Arcuate (C)</p> Signup and view all the answers

The capacity of a stream depends on:

<p>Discharge and competence (D)</p> Signup and view all the answers

The drainage pattern produced by rivers when flowing over pre-existing fractures and join each other at right angles is known as:

<p>Rectangular (D)</p> Signup and view all the answers

A large river has more capacity than a smaller river.

<p>True (A)</p> Signup and view all the answers

The lowest elevation that a stream channel's surface can reach at a locality is called the _______ of the stream.

<p>Base level (D)</p> Signup and view all the answers

Toward the mouth of a stream, the gradient is ______ , discharge is ______ , sediment grain sizes are ______ , and channels are ______ .

<p>Flat, high, fine, meandering (A)</p> Signup and view all the answers

Deposit of sediments due a change in gradient at the foot of a mountain is called

<p>Alluvial fan (D)</p> Signup and view all the answers

Streams forced to flow around sediment obstructions causing converging and diverging patterns of stream flow is called:

<p>Braided stream (A)</p> Signup and view all the answers

Sand deposits in the form of ridges parallel to the channel are called:

<p>Levee (D)</p> Signup and view all the answers

Rivers erode the ______ bank and deposit point bars along the ______ banks of a meandering channel

<p>Outer, inner (A)</p> Signup and view all the answers

A natural process where a river's flow is diverted from its established channel into a new course at a lower elevation is called:

<p>Channel avulsion (A)</p> Signup and view all the answers

Sediments deposited in a standing body of water is called a:

<p>Delta (A)</p> Signup and view all the answers

Channels diverging and flowing away from a main channel are called:

<p>Distributaries (A)</p> Signup and view all the answers

The Mississippi delta is an example of _______ delta:

<p>Bird's foot (A)</p> Signup and view all the answers

The diversion of flow due to headward erosion when a stream intersects another stream diverting the water from the latter stream into its own channel is called:

<p>Stream piracy (C)</p> Signup and view all the answers

When a meandering channel starts downcutting due to a fall in base level or a tectonic uplift it is called:

<p>Stream rejuvenation (C)</p> Signup and view all the answers

Flashcards

Watershed

The land area drained by a network of streams and rivers, encompassing all the tributaries that contribute to a main channel.

Headwater Erosion

Erosion that occurs in the uppermost part of a stream, flowing upstream against the main water flow, often caused by intense scouring.

Tributaries

Smaller streams that join a main channel in the upper reaches of a stream, adding to its overall water flow.

Dendritic Drainage Pattern

A drainage pattern where streams resemble branches connecting to the trunk of a tree, often formed on uniform substrate, like a plain.

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Permanent Stream

A stream with water flow throughout the year, regardless of seasonal variations in precipitation.

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Ephemeral Stream

A stream that flows only during periods of rainfall or snowmelt, its water flow ceasing during dry seasons.

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Discharge

The volume of water flowing through a stream's channel at a specific point in time, indicating the amount of water passing by.

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Stream Width

The horizontal distance across a stream, measured at a specific point along its channel.

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Stream Depth

The vertical distance from the stream surface to its bed, measured at a specific point in its channel.

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Velocity

The speed at which water flows through a stream's channel, influencing how much sediment it can carry.

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Trellis Drainage Pattern

A drainage pattern characterized by streams flowing over alternating hard and soft rocks, often joining the main channel at right angles.

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Saltation

A sediment transport mode where particles move in a series of jumps and bounces along the streambed, primarily in the flow's middle zone.

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Competence

The maximum particle size a stream can carry based on its flow speed, determining the largest sediment its flow can transport.

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Capacity

The total amount of sediment a stream can transport, depending on its flow speed and volume, indicating its overall carrying capacity.

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Gradient

The steepness of a stream channel, influencing its flow speed and erosion potential, with steeper gradients leading to faster flow.

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Slower Flow

A stream flow with reduced velocity, having less energy to carry larger particles, leading to a decrease in its competence.

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Nile Delta

A large, arcuate delta, shaped like a curve or arc, formed at the mouth of the Nile River, demonstrating the impact of river flow on land.

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Rectangular Drainage Pattern

A drainage pattern characterized by streams flowing along pre-existing fractures in the underlying rock, often joining each other at right angles, creating a grid-like pattern.

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Base Level

The lowest elevation a stream can reach at a specific location, often determined by sea level or a lake, limiting its erosion potential.

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Alluvial Fan

A fan-shaped deposit of sediments formed at the foot of a mountain, typically where a stream's gradient changes abruptly, causing sediment deposition.

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Braided Stream

A stream with a network of interconnecting channels, formed when a stream has a high sediment load and frequent variations in its flow, creating a braided appearance.

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Point Bars

Crescent-shaped deposits of sediment formed on the inner banks of a meandering stream channel, where the flow velocity is lower, allowing sediment deposition.

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Floodplain

The flat, low-lying land area adjacent to a stream channel, subject to periodic flooding, forming a fertile area for agriculture.

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Levee

Natural or artificial ridges along the banks of a stream channel, formed by deposition of sediment during floods, acting as protective barriers.

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Channel Avulsion

A natural process where a stream's flow diverts from its established channel into a new course at a lower elevation, often due to sediment accumulation.

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Distributaries

Channels that diverge and flow away from a main channel, often formed as a stream enters a body of water like a lake or sea.

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Bird's Foot Delta

A delta shaped like a bird's foot, characterized by numerous distributaries that extend into a water body, often formed by a strong river flow.

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Stream Piracy

A process where a stream captures the flow of another stream through headward erosion, diverting the water and sediment from one channel to another.

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Stream Rejuvenation

A process where a stream channel starts downcutting due to a fall in base level or a tectonic uplift, renewing its erosive power.

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Study Notes

Quiz Information

  • Quiz name: GG1113
  • Quiz type: Not graded, but scored in class
  • Format: Multiple choice questions and true/false questions.

Quiz Rules

  • Two groups (Alluvial fan & Delta) allowed to discuss among members.
  • 30 seconds per question.
  • 1 point for each correct answer. No negative points for wrong answers.
  • Unanswered and incorrectly answered questions pass to the next group.
  • 0.5 points assigned for correctly answering past questions.
  • A discretionary bonus point can be awarded for group participation and energy.

Geography Quiz Questions and Answers

  • Question 1: The land drained by a network of streams is called a:

    • Answer: Watershed

  • Question 2: Erosion occurring via intense scouring in an upstream direction opposite to flow direction in the uppermost part of a stream/channel is called:

    • Answer: Headwater erosion

  • Question 3: Smaller streams joining the main channel in the upper reaches of a stream are called:

    • Answer: Tributaries

  • Question 4: The drainage pattern produced by rivers flowing over uniform substrate resembling branches connecting to a tree trunk is known as:

    • Answer: Dendritic

  • Question 5: Discharge is defined as:

    • Answer: The volume of water flowing through a channel at a specific point in time. (True)

  • Question 6: The drainage is calculated as:

    • Answer: Stream width x stream depth x velocity

  • Question 7: The drainage pattern formed by channels flowing over alternating hard and soft rocks at right angles to the main channel is known as:

    • Answer: Trellis

  • Question 8: The mode of sediment transport where sediment moves in the form of alternate jumping through a channel is:

    • Answer: Saltation

  • Question 9: The maximum particle size that a stream can carry is called:

    • Answer: Competence

  • Question 10: The total sediments that a stream can carry is called its:

    • Answer: Capacity

  • Question 11: Near the headwater source of a stream the gradient is steep, discharge is high, sediments are coarse and the channel is straight.

    • Answer: Correct

  • Question 12: A slower flow has lower competence.

    • Answer: True

  • Question 13: The competence of a stream depends on:

    • Answer: Flow speed and viscosity

  • Question 14: The Nile Delta is an example of what type of delta:

    • Answer: Arcuate.

  • Question 15: The capacity of a stream depends on:

    • Answer: Discharge and competence

  • Question 16: The drainage pattern where rivers flow over pre-existing fractures and join at right angles is called:

    • Answer: Rectangular

  • Question 17: A large river has more capacity than a smaller river:

    • Answer: True

  • Question 18: The lowest elevation a stream channel can reach is called:

    • Answer: Base level

  • Question 19: Toward the mouth of a stream, the gradient is flat, sediment grain sizes are fine, discharge is and channels are meandering.

    • Answer: Correct

  • Question 20: Deposit of sediments due to a change in gradient at the foot of a mountain is called:

    • Answer: Alluvial fan

  • Question 21: Streams forced to flow around sediment obstructions causing converging and diverging patterns is called:

    • Answer: Braided stream

  • Question 22: Sand deposits in the form of ridges parallel to the channel are called:

    • Answer: Levee

  • Question 23: Rivers erode the outer bank and deposit point bars along the banks of a meandering channel:

    • Answer: Correct

  • Question 24: A natural process where a river's flow is diverted into a new course at a lower elevation is called:

    • Answer: Channel avulsion

  • Question 25: Sediments deposited in a standing body of water is called a:

    • Answer: Delta

  • Question 26: Channels diverging and flowing away from a main channel are called:

    • Answer: Distributaries

  • Question 27: The Mississippi delta is an example of what type of delta?

    • Answer: Bird's foot

  • Question 28: The diversion of flow due to headward erosion into another stream's channel is called:

    • Answer: Stream piracy

  • Question 29: When a meandering channel starts downcutting due to a fall in base level or tectonic uplift it is called:

    • Answer: Stream rejuvenation

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Description

Test your knowledge in geography with this engaging quiz GG1113. Dive into concepts like watersheds and erosion while collaborating with your group. Answer multiple choice and true/false questions within a timed format to score points and boost your understanding of geographical processes.

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