River Ecosystem Lecture 9: Hydrosphere and Lithosphere

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What is the definition of a river basin?

The area where a river meets the ocean

The portion of land drained by a river and its tributaries (correct)

The point where a river splits into smaller streams

The part of a river with the fastest flow

What does a river basin encompass?

The point where water flows into the ocean

Only the water within the river

Only the main river

All the land surface drained by many streams and creeks (correct)

What is the final destination of the water in a river basin?

Waterfall

Estuary (correct)

Ocean

Lake

What does a river basin eventually send its water to before reaching the ocean?

Estuary Signup and view all the answers

What is the main function of a river?

To connect different parts of a river basin Signup and view all the answers

What is the difference between a river basin and a watershed?

A river basin includes all the water that drains to a large river, while a watershed refers to a smaller area draining to a smaller stream Signup and view all the answers

What is the function of evapotranspiration in the water cycle?

To lose moisture directly from water surfaces or vegetation Signup and view all the answers

What does drainage density indicate in a drainage basin?

The length of all rivers in a drainage basin divided by the area of the drainage basin Signup and view all the answers

What is the source of a river?

Where a river starts Signup and view all the answers

What is meant by interception in the context of water flow?

'Interrupting' the flow of water to the ground by trees and other plants Signup and view all the answers

What does throughflow represent in the movement of water?

The movement of water through the soil towards the river channel Signup and view all the answers

What does groundwater flow refer to in the context of a river basin?

The movement of water through the rock layer towards the river channel Signup and view all the answers

What is the function of surface runoff in a river basin?

Water flowing directly overland to the river (overland flow) Signup and view all the answers

What is meant by tributary in relation to a river?

A smaller stream/river which flows into a larger one Signup and view all the answers

River Ecosystem Lecture 9: Hydrosphere and Lithosphere

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