The Lower Course Of A River

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MrCJDean

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1/17 Questions

The start of the river, normally found in mountainous areas is called the _______

About This Quiz

Explore the dynamics of river courses in this engaging quiz. Understand the characteristics of a river's lower course, including floodplains, levees, and alluvium deposits. Assess knowledge on river sediment and its implications for agriculture, enhancing both geographical and environmental science skills.

2.

As a river reaches the end of its journey, energy levels are low.
- True
- False
Correct Answer

A. True

Explanation

As a river reaches the end of its journey, it has been flowing for a long distance and has encountered various obstacles and terrain changes along the way. This continuous flow and interaction with the environment cause the river's energy levels to gradually decrease. Additionally, as the river approaches its end, it may encounter flatter terrain and lower gradients, further contributing to the decrease in energy levels. Therefore, it is true that as a river reaches the end of its journey, energy levels are low.

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3.

The ________ is the end of the river, this is normally where a river enters the sea, but it can be where it enters a lake.

Correct Answer
mouth

Explanation
The term "mouth" refers to the end point of a river where it meets a larger body of water, such as the sea or a lake. This is the final destination of the river's flow and is typically characterized by a wider and deeper channel. The mouth is an important feature as it marks the transition from the river's freshwater environment to the saltwater or freshwater environment of the sea or lake.

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4.

Any moisture that falls from the sky e.g. rain or snow is called _______

Correct Answer
precipitation

Explanation
Precipitation refers to any form of water that falls from the atmosphere to the Earth's surface, such as rain, snow, sleet, or hail. It is a natural process that occurs when the water vapor in the atmosphere condenses and becomes too heavy to remain suspended, resulting in it falling to the ground. Precipitation is an essential part of the Earth's water cycle and plays a crucial role in maintaining the planet's ecosystems and providing water resources for various purposes.

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5.

The alluvium deposits are very fertile, making the mouth of the river a good place for
- Agriculture
- Roads
- Fishing
- Building
Correct Answer

A. Agriculture

Explanation

The alluvium deposits, which are sediments deposited by the river, are known to be very fertile. This means that the soil in the area around the mouth of the river is rich in nutrients and ideal for growing crops. Therefore, agriculture would be a good economic activity to pursue in this location.

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6.

A ___________ is the area around a river that is covered in times of flood.

Correct Answer
floodplain

Explanation
A floodplain is the area around a river that is covered in times of flood. It is a flat or gently sloping stretch of land adjacent to a river that is prone to flooding. When the river overflows its banks, the excess water spreads out onto the floodplain, causing the area to be submerged. The floodplain acts as a natural buffer, absorbing and storing floodwaters, which helps to reduce the impact of flooding on nearby communities and infrastructure.

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7.

A __________ is formed when the river deposits its material faster than the sea can remove it.

Correct Answer
delta

Explanation
A delta is formed when a river deposits its material faster than the sea can remove it. This occurs when the river carries a large amount of sediment, such as sand, silt, and clay, and the energy of the river decreases as it enters the sea. As a result, the sediment is dropped and accumulates, forming a triangular or fan-shaped landform known as a delta. Deltas are often found at the mouths of rivers and are characterized by their rich soil and diverse ecosystems.

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8.

In the lower course of a river it has a low volume.
- True
- False
Correct Answer

A. False

Explanation

'Volume' means 'amount' here. So this question is asking if rivers at their mouths have a lot or a little water.

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9.

What is the name for the sediment deposited by rivers?
- Levees
- Alluvium
- Cuspate
- Deltas
Correct Answer

A. Alluvium

Explanation

Alluvium is the correct answer because it refers to the sediment that is deposited by rivers. It consists of a mixture of sand, silt, clay, and other organic materials that are carried by the river and then settle on the riverbed or floodplain. Alluvium plays a crucial role in shaping the landscape and providing fertile soil for agriculture.

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10.

The ___________ is where two rivers meet.

Correct Answer
confluence

Explanation
The word "confluence" refers to the point where two rivers meet. It is commonly used to describe the merging of two separate streams of water into one. In this context, "confluence" accurately describes the location where two rivers come together.

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11.

A build up of alluvium on the banks of a river can create ____________, which raise the river bank.

Correct Answer
levees

Explanation
A build up of alluvium on the banks of a river can create levees, which are natural embankments that form along the sides of a river. These levees are formed when sediment and debris carried by the river are deposited on the banks, gradually raising the level of the river bed. Over time, this accumulation of sediment creates raised banks that help contain the river within its channel during periods of high water flow, reducing the risk of flooding in the surrounding areas.

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12.

Which type of delta is this?
- Arcuate
- Bird's foot
- Cuspate
- Option 4
Correct Answer

A. Bird's foot

Explanation

The given question is asking for the type of delta being referred to. The correct answer is "bird's foot." A bird's foot delta is a type of delta that resembles the shape of a bird's foot, with multiple distributaries branching out from a central point. This type of delta is commonly found in areas with strong tidal currents and a high sediment load, such as the Mississippi River delta.

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13.

Which type of delta is this?
- Arcuate
- Bird's foot
- Cuspate
- Option 4
Correct Answer

A. Cuspate
14.

Which type of delta is this?
- Arcuate
- Bird's foot
- Cuspate
- Option 4
Correct Answer

A. Arcuate
15.

Which type of delta is this?
- Arcuate
- Bird's foot
- Cuspate
- Option 4
Correct Answer

A. Bird's foot

Explanation

The correct answer is "bird's foot." This type of delta is characterized by multiple distributary channels that resemble the shape of a bird's foot. These distributaries spread out in a fan-like pattern, creating a complex network of channels and islands. This type of delta is commonly found in areas with high sediment loads and strong tidal currents.

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16.

Which type of delta is this?
- Arcuate
- Bird's foot
- Cuspate
- Option 4
Correct Answer

A. Arcuate
17.

Which type of delta is this?
- Arcuate
- Bird's foot
- Cuspate
- Option 4
Correct Answer

A. Cuspate

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Jun 21, 2023

Quiz Edited by
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Jan 26, 2015

Quiz Created by
MrCJDean

The Lower Course Of A River

The start of the river, normally found in mountainous areas is called the _______

Quiz Preview

As a river reaches the end of its journey, energy levels are low.

The ________ is the end of the river, this is normally where a river enters the sea, but it can be where it enters a lake.

Any moisture that falls from the sky e.g. rain or snow is called _______

The alluvium deposits are very fertile, making the mouth of the river a good place for

A ___________ is the area around a river that is covered in times of flood.

A __________ is formed when the river deposits its material faster than the sea can remove it.

In the lower course of a river it has a low volume.

What is the name for the sediment deposited by rivers?

The ___________ is where two rivers meet.

A build up of alluvium on the banks of a river can create ____________, which raise the river bank.

Which type of delta is this?

Which type of delta is this?

Which type of delta is this?

Which type of delta is this?

Which type of delta is this?

Which type of delta is this?