Drainage Basin

Question 1

What is a drainage basin?

Answer 1

A drainage basin is an area of land where all the water that falls as precipitation drains into a common outlet, such as a river, lake, or ocean.

Question 2

True or False: A drainage basin is also known as a watershed.

Answer 2

True

Question 3

Fill in the blank: The boundary of a drainage basin is called a __________.

Answer 3

watershed

Question 4

What are the main components of a drainage basin?

Answer 4

The main components are the river system, tributaries, surrounding land, and the watershed boundary.

Question 5

Multiple Choice: Which of the following is NOT a factor that affects drainage basin characteristics? A) Climate B) Soil type C) Population density D) River length

Answer 5

D) River length

Question 6

What role does vegetation play in a drainage basin?

Answer 6

Vegetation helps to reduce soil erosion, retain water, and regulate the water cycle.

Question 7

True or False: Urbanization can increase runoff in a drainage basin.

Answer 7

True

Question 8

What is the significance of the term ‘hydrological cycle’ in relation to drainage basins?

Answer 8

The hydrological cycle describes the continuous movement of water within the drainage basin, including processes like evaporation, condensation, precipitation, and runoff.

Question 9

What is the primary source of water for a drainage basin?

Answer 9

The primary source of water is precipitation, which includes rain, snow, and other forms of moisture.

Question 10

Fill in the blank: A drainage basin can be divided into smaller units called __________.

Answer 10

sub-basins

Question 11

Multiple Choice: What is a key environmental concern related to drainage basins? A) Air pollution B) Deforestation C) Soil erosion D) All of the above

Answer 11

D) All of the above

Question 12

What is the function of tributaries in a drainage basin?

Answer 12

Tributaries are smaller rivers or streams that flow into a larger river, contributing to the total water flow.

Question 13

True or False: All drainage basins eventually lead to the ocean.

Answer 13

False

Question 14

What is the impact of human activities on drainage basins?

Answer 14

Human activities can lead to pollution, habitat destruction, altered water flow, and increased flood risks.

Question 15

Fill in the blank: The process by which water infiltrates into the ground in a drainage basin is called __________.

Answer 15

infiltration

Question 16

What is the term for the maximum amount of water that a drainage basin can hold?

Answer 16

The term is ‘capacity’ or ‘water storage capacity.’

Question 17

Multiple Choice: Which of the following can improve water quality in a drainage basin? A) Wetlands B) Paved surfaces C) Industrial runoff D) Deforestation

Answer 17

A) Wetlands

Question 18

What is the effect of climate change on drainage basins?

Answer 18

Climate change can alter precipitation patterns, increase the frequency of extreme weather events, and affect water availability.

Question 19

True or False: The size of a drainage basin can influence the speed of water flow.

Answer 19

True

Question 20

What is an example of a drainage basin?

Answer 20

The Mississippi River Basin is an example of a drainage basin.

Question 21

Fill in the blank: The area where water from a drainage basin is collected and stored is known as a __________.

Answer 21

reservoir

Question 22

What is the significance of stream order in drainage basins?

Answer 22

Stream order helps to classify the hierarchy of streams and rivers based on their size and contribution to the drainage basin.

Question 23

Multiple Choice: Which human activity can significantly alter a drainage basin’s hydrology? A) Agriculture B) Urban development C) Deforestation D) All of the above

Answer 23

D) All of the above

Question 24

What is the term for the area of land that drains into a specific river or lake?

Answer 24

The term is ‘drainage area.’

Question 25

True or False: Drainage basins can vary greatly in size from small streams to large river systems.

Answer 25

True

Question 26

What is the role of sediment transport in a drainage basin?

Answer 26

Sediment transport is essential for shaping riverbanks, creating habitats, and maintaining ecosystem health.

Question 27

Fill in the blank: The __________ of a drainage basin refers to its shape and landform characteristics.

Answer 27

topography

Question 28

What is the importance of monitoring drainage basins?

Answer 28

Monitoring drainage basins helps to assess water quality, manage resources, and predict flood risks.

Question 29

Multiple Choice: Which factor does NOT influence the water cycle within a drainage basin? A) Temperature B) Vegetation C) Topography D) Ocean currents

Answer 29

D) Ocean currents

Question 30

What is the primary method for studying drainage basins?

Answer 30

The primary method is through hydrological modeling and field measurements.

Question 31

True or False: Drainage basins can impact local weather patterns.

Answer 31

True