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WorksheetsS5 Geog 1st Term Joint Test Revision
Total questions: 30
Worksheet time: 5mins
The energy of a river is affected by the following factors: (choose all correct answers)
the speed of water flow
the amount of channel water
the size of the ocean
the amount of water in the hydrological circulation
The volume of river water passing a given cross-section of its channel within a given period of time (usually in a second) in known as _____________.
watershed
confluence
estuary
discharge
Four major types of erosion include attrition, abrasion, solution and (a) action.
Three directions of erosional processes include headward erosion, lateral erosion and (a) erosion (a.k.a. downcutting)
Select all the correct factors below which can help increasing the amount of channel water:
Increase of drainage density
Decrease of vegetation cover
Increase of the permeability of rocks
Decrease in rainfall
Increase in the steepness of slope
In the middle course of a river, transportation is the major fluvial processes which include solution, suspension, saltation and (a) (happens when boulders rolled & dragged along the river bed).
_______________ is significant in the lower course. It occurs at the estuary and the inner banks of the river. It also occurs at the river bed during summer season.
Erosion
Transportation
Deposition
When the river starts to lose its energy, it drops the __________ & __________ load first. This process is known as sorting.
lighter
heavier
larger
smaller
The boundary of a river basin is known as the (a) .
Which part of the river has the most gentle gradient of slope?
lower course
middle course
upper course
____________ is the part of the water cycle that that the raindrop is intercepted by the leaves of trees, prevent it from falling onto the ground in great force. This helps to lower the risk of soil erosion.
infiltration
percolation
interception
throughflow
The process by which water is transferred from the land to the atmosphere by evaporation from the soil and other surfaces and by transpiration from plants is known as (a) .
(T/F) There is an increase in evaporation because more ground surface is exposed to the sun after deforestation.
True
False
When forest is converted into a farmland, which of the following results are correct? (Select all correct answers)
There is a decrease in surface runoff because of a more active rate of evaporation.
More farming activities draw more water from the river for irrigation or pump water from the well thus groundwater storage decreases.
The amount of soil water will increase because crops can hold more water in soil than forest.
Deforestation means more infiltration and percolation.
What are the benefits of living near the rivers? (Choose all correct answers)
Rivers provide water for daily life usage
Rivers can be used for navigation
Rivers promote saline water fishery
Rivers facilitate economic activities by providing water for industrial and commercial uses
Rivers provides irrigation water for agicultural activities
River (a) is the area of land drained by the main river and its tributaries.
The overland flow decreases when... (choose all correct answers)
the infiltration rate decreases
the precipitation rate decreases
the slope becomes steeper
the permeability of the rocks become higher
Which of the following gradient of the valley slope is steeper?
1:3
1:30
Which type of erosion takes place when the pieces of rock in the load collide and break into smaller pieces, which makes the load more round and smooth?
attrition
corrasion/ abrasion
corrosion/ solution
hydraulic action
Small stones and pebbles which bounce along the river bed is one method of transportation that is known as ______________.
suspension
saltation
traction
solution
Which method of transportation will move the load farthest away?
suspension
traction
saltation
solution
Which method of transportation will consume most of the river's energy?
suspension
traction
saltation
solution
Large and heavy boulders and rocks are rolled and dragged along the river bed. This kind of fluvial transportation movement is called ___________.
suspension
traction
saltation
solution
Fine, light materials are carried along without touching the river bed. This kind of fluvial transportation movement is called ___________.
suspension
traction
saltation
solution
Small stones and pebbles bounce along the river bed. This kind of fluvial transportation movement is called ___________.
suspension
traction
saltation
solution
Soluble minerals are dissolved and carried downstream. This kind of fluvial transportation movement is called ___________.
suspension
traction
saltation
solution
Which type of river load can be transported even when the river has a very small energy?
dissolved load
boulders
pebbles
clay
Which type of river load can be transported even when the river has a very small energy?
dissolved load
boulders
pebbles
clay
Dissolved load is a kind of soluble minerals. Clay, silt and sand are suspended load. What are pebbles and boulders?
bad load
bed load
bank load
less resistant load
River rafting is a fun but dangerous activity that are usually being held in which of the following river landforms?
waterfall
potholes
V-shaped valley
rapids
