Water On The Land

Question 0

What are the 5 features of a drainage basin?

Answer 0

• Source = start of the river
• Mouth = end of the river
• Tributary = small river flowing to large
• Confluence = where two rivers meet
• Channel = area that the water flows in

Question 1

What is the drainage basin?

Answer 1

An area of land which is drained by the river. When rain occurs it falls into the river at the top of the mountains (source).

Question 2

What are the 7 stages of the water cycle?

Answer 2

1) Evaporation
2) Transpiration
3) Condensation
4) Wind moves clouds
5) Precipitation
6) Water moves
7) Repeat

Question 3

What is erosion?

Answer 3

The wearing away of land which usually occurs in the upper course of the river.

Question 4

What is attrition?

Answer 4

Where material is moved along the bed of the river, collides with another materials and then breaks into small pieces.

Question 5

What is corrasion?

Answer 5

Fine material rubs against the river bank which is worn away by a sand papering motion called abrasion.

Question 6

What is corrosion?

Answer 6

Rocks are dissolved by acids in the river.

Question 7

What is hydraulic action?

Answer 7

The sheer force of the water hitting the banks of the river.

Question 8

When does deposition occur?

Answer 8

Deposition occurs when river velocity and turbulence decreases. The heaviest load is deposited first.

Question 9

What is transportation? And 4 stages?

Answer 9

Transportation is the movement of material (bed load) from one place to another.

1) Traction
2) Saltation
3) Suspension
4) Solution

Question 10

What factors affect discharge?

Answer 10

• Weather
• Precipitation
• Relief
• Temperature
• Rock type
• Land use

Question 11

When was the Boscastle flood?

Answer 11

16th August 2004

Question 12

What are some examples of flood control?

Answer 12

• Build dams/reservoirs
• Raise levees
• Straighten rivers for faster flow
• Build concrete walls
• Warn people
• Land use zonation
• Plant trees in drainage basin

Question 13

What are some of the impacts of the Kielder Dam (UK artificial lake)?

Answer 13

• More jobs
• Tourist attraction
• Farmland lost
• More habitats by lake
• 1.5 million trees destroyed
• Flooded an area of natural beauty

Question 14

What were the causes of the Bangladesh flood?

Answer 14

• Climate change
• Extremely fertile land
• Built on floodplains
• Deforestation
• Poor drainage
• Monsoon Season

Question 15

What are the similarities between deltas and estuaries?

Answer 15

• Distributaries
• Lower course
• Saline (salt water)
• Affected by high tides and storms

Question 16

What are the differences between deltas and estuaries?

Answer 16

• Different parts of the world
• Deltas made up of deposited material
• Estuaries are on solid ground