Drainage Basins in South Africa Quiz and Flashcards

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What is the primary function of drainage basins in South Africa?

To form lakes

To create waterfalls

To collect and drain off precipitation (correct)

To produce groundwater

What is another term for drainage basins?

Waterfall zones

Lake regions

Catchment areas (correct)

Watershed areas

In a drainage basin, what does a tributary refer to?

A type of waterfall

A smaller stream that feeds into a larger river (correct)

An underground water source

A large river that feeds into the ocean

What is the term used for the point where two or more streams meet within a drainage basin?

Confluence Signup and view all the answers

What is the role of a watershed in relation to drainage basins?

It separates adjacent drainage basins Signup and view all the answers

What defines a river system within a drainage basin?

The network of rivers and streams in the basin Signup and view all the answers

Which term refers to the geographic area where all precipitation flows to a single stream?

Drainage basin Signup and view all the answers

What is the term for a higher land area between two rivers in the same drainage basin?

Interfluve Signup and view all the answers

Which type of river originates from humid areas but flows through arid regions?

Exotic Rivers Signup and view all the answers

What does the term 'water table' refer to?

Upper surface of the zone of saturation Signup and view all the answers

Which drainage pattern is characterized by right-angle turns, often due to jointed rock?

Rectangular Signup and view all the answers

What determines the hierarchy of streams from the smallest tributaries to the largest rivers?

Stream Order Signup and view all the answers

In which type of flow do eddies and swirls occur, typical in fast-moving or obstructed streams?

Turbulent Flow Signup and view all the answers

Which river management strategy is important for sustaining South Africa's drainage basins?

(Pollution Prevention) Signup and view all the answers

(Stream order) refers to what aspect of rivers?

(Hierarchy based on size and tributaries) Signup and view all the answers

What is the main purpose of a drainage basin in hydrology?

Collecting and draining off precipitation into a common outlet Signup and view all the answers

Which term is synonymous with 'catchment area' in the context of drainage basins?

Drainage basin Signup and view all the answers

What geographical feature separates adjacent drainage basins?

Watershed Signup and view all the answers

In a river system within a drainage basin, what does a tributary do?

Feed into a larger stream or river Signup and view all the answers

What does 'confluence' refer to in the context of drainage basins?

The point where two or more streams meet Signup and view all the answers

Which factor contributes to the unique characteristics of South Africa's drainage basins?

Climate and topography Signup and view all the answers

What distinguishes a river system from a drainage basin?

Network of rivers and streams within the basin Signup and view all the answers

In hydrology, what defines the boundary separating adjacent drainage basins?

Watershed Signup and view all the answers

What type of river flows only briefly following significant rainfall events?

Episodic River Signup and view all the answers

What type of flow is characterized by chaotic flow with eddies and swirls, common in fast-moving or obstructed streams?

Turbulent Flow Signup and view all the answers

Which drainage pattern resembles tree branches and is common in uniform soil and rock conditions?

Dendritic Signup and view all the answers

In South Africa, which type of river originates from humid areas but flows through arid regions?

Exotic River Signup and view all the answers

What term refers to the upper surface of the zone of saturation where the soil or rocks are fully saturated with water?

Water Table Signup and view all the answers

What factor significantly affects drainage density and stream order in a region?

Precipitation Signup and view all the answers

Which river management strategy is crucial for preventing pollution and restoring degraded catchment areas?

Effective management and conservation strategies Signup and view all the answers

What type of river flows continuously throughout the year?

Permanent River Signup and view all the answers

Which drainage pattern features right-angled tributaries, typical in folded mountain ranges?

Trellis Signup and view all the answers

What is the term for the smooth, layered flow of water in a river?

Laminar Flow Signup and view all the answers

Which type of river in South Africa flows during certain seasons, typically in response to rainfall?

Periodic Rivers Signup and view all the answers

What type of flow in a river system is smooth, layered, and well-ordered?

Laminar Flow Signup and view all the answers

What type of river originates from humid areas but flows through arid regions in South Africa?

Exotic Rivers Signup and view all the answers

Which drainage pattern features streams that radiate outward from a central point, such as a volcanic hill?

Radial Signup and view all the answers

What factor significantly influences drainage density and stream order in a region?

Topography Signup and view all the answers

Which type of river management strategy is essential for the sustainable management of South Africa's drainage basins?

Pollution Prevention Signup and view all the answers

In which drainage pattern are streams parallel to each other and usually found on steep slopes?

Parallel Signup and view all the answers

Where does groundwater primarily exist within the Earth's layers?

In underground soil and rock layers Signup and view all the answers

'Trellis' drainage patterns are typically found in which geographical feature?

Folded mountain ranges Signup and view all the answers

What term is used to describe water flowing over the land's surface from rain, snowmelt, or other sources?

Surface Run-off Signup and view all the answers

What feature distinguishes a watershed from other geographical elements within a drainage basin?

It is the boundary separating adjacent drainage basins. Signup and view all the answers

What term is used to describe a smaller stream that feeds into a larger stream or river within a drainage basin?

Tributary Signup and view all the answers

Which concept refers to the point where two or more streams meet within a drainage basin?

Confluence Signup and view all the answers

What role does a river system play within a drainage basin?

It refers to the network of rivers and streams within a drainage basin. Signup and view all the answers

What term describes the boundary that separates adjacent drainage basins in hydrology?

Watershed Signup and view all the answers

Which element of a drainage basin refers to the area where water is collected by the natural landscape?

Catchment Area Signup and view all the answers

In hydrology, what do tributaries contribute to within a river system?

They feed into larger streams or rivers. Signup and view all the answers

What is the primary function of a confluence within a river system?

To mark the point where two or more streams meet. Signup and view all the answers

CH 2: Drainage Basins in South Africa

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Questions and Answers

What is the primary function of drainage basins in South Africa?

What is another term for drainage basins?

In a drainage basin, what does a tributary refer to?

What is the term used for the point where two or more streams meet within a drainage basin?

What is the role of a watershed in relation to drainage basins?

What defines a river system within a drainage basin?

Which term refers to the geographic area where all precipitation flows to a single stream?

What is the term for a higher land area between two rivers in the same drainage basin?

Which type of river originates from humid areas but flows through arid regions?

What does the term 'water table' refer to?

Which drainage pattern is characterized by right-angle turns, often due to jointed rock?

What determines the hierarchy of streams from the smallest tributaries to the largest rivers?

In which type of flow do eddies and swirls occur, typical in fast-moving or obstructed streams?

Which river management strategy is important for sustaining South Africa's drainage basins?

(Stream order) refers to what aspect of rivers?

What is the main purpose of a drainage basin in hydrology?

Which term is synonymous with 'catchment area' in the context of drainage basins?

What geographical feature separates adjacent drainage basins?

In a river system within a drainage basin, what does a tributary do?

What does 'confluence' refer to in the context of drainage basins?

Which factor contributes to the unique characteristics of South Africa's drainage basins?

What distinguishes a river system from a drainage basin?

In hydrology, what defines the boundary separating adjacent drainage basins?

What type of river flows only briefly following significant rainfall events?

What type of flow is characterized by chaotic flow with eddies and swirls, common in fast-moving or obstructed streams?

Which drainage pattern resembles tree branches and is common in uniform soil and rock conditions?

In South Africa, which type of river originates from humid areas but flows through arid regions?

What term refers to the upper surface of the zone of saturation where the soil or rocks are fully saturated with water?

What factor significantly affects drainage density and stream order in a region?

Which river management strategy is crucial for preventing pollution and restoring degraded catchment areas?

What type of river flows continuously throughout the year?

Which drainage pattern features right-angled tributaries, typical in folded mountain ranges?

What is the term for the smooth, layered flow of water in a river?

Which type of river in South Africa flows during certain seasons, typically in response to rainfall?

What type of flow in a river system is smooth, layered, and well-ordered?

What type of river originates from humid areas but flows through arid regions in South Africa?

Which drainage pattern features streams that radiate outward from a central point, such as a volcanic hill?

What factor significantly influences drainage density and stream order in a region?

Which type of river management strategy is essential for the sustainable management of South Africa's drainage basins?

In which drainage pattern are streams parallel to each other and usually found on steep slopes?

Where does groundwater primarily exist within the Earth's layers?

'Trellis' drainage patterns are typically found in which geographical feature?

What term is used to describe water flowing over the land's surface from rain, snowmelt, or other sources?

What feature distinguishes a watershed from other geographical elements within a drainage basin?

What term is used to describe a smaller stream that feeds into a larger stream or river within a drainage basin?

Which concept refers to the point where two or more streams meet within a drainage basin?

What role does a river system play within a drainage basin?

What term describes the boundary that separates adjacent drainage basins in hydrology?

Which element of a drainage basin refers to the area where water is collected by the natural landscape?

In hydrology, what do tributaries contribute to within a river system?

What is the primary function of a confluence within a river system?

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