GEOGRAPHY TOPICAL QUESTIONS AND ANSWERS - ATIKA SCHOOL

The diagram below represents features produced by faulting.Use it to answer questions that follow.

26/2/2021

KCSE Geography Paper 1 2002 Section A Question 1.

The diagram below represents features produced by faulting. Use it to answer questions that follow.

The diagram below represents features produced by faulting.Use it to answer questions that follow. a) Name the features marked P,Q, and R b) Differentiate between a normal faulty and a reverse fault.

a) Name the features marked P,Q, and R

P - Horst block
Q - Rift valley
R - Fault scarp / escarpment

b) Differentiate between a normal faulty and a reverse fault.

In a normal fault part of the fault is exposed to form an escarpment when in a reverse fault the plane the plane is not exposed.
A normal fault is cause by tensional forces while a reverse fault occurs due to Compressional forces.
In a normal fault, the up throw move away from down throw while in a reverse fault the up throw moves over down throw.

A part from the Rift Valley name two other relief features that were formed as result of faulting.

24/2/2021

KCSE Geography Paper 1 2004 Section B Question 7.

a) i) A part from the Rift Valley name two other relief features that were formed as result of faulting.

Tilt block
Escarpment/scrap slope
Block mountain/ horsts

ii) With the aid of a well labeled diagram, describe how a Rift Valley is formed by tensional forces.

ii) With the aid of a well labeled diagram, describe how a Rift Valley is formed by tensional forces.

Layers of rocks are subjected to tensional forces when there is some tensional forces when there is some instability within the earth’s crust.
Parallel normal faults develop/lines of weakness develop.

ii) With the aid of a well labeled diagram, describe how a Rift Valley is formed by tensional forces.

ii) With the aid of a well labeled diagram, describe how a Rift Valley is formed by tensional forces.

Apart from the Rift Valley, name three other relief’ features formed as a result of faulting.

1/2/2021

KCSE Geography Paper 1 2015 Section B Question 8.

(a) (i) Apart from the Rift Valley, name three other relief’ features formed as a result of faulting.

Escarpments/scarp slopes.
Tilt blocks.
Fault steps.
Block mountains/horst/fault block.

(ii) With the aid of diagrams, describe how the Great Rift Valley may have been formed by tensional forces.

Layers of rocks are subjected to tensional forces when there is some instability within the earth’s crust.

(ii) With the aid of diagrams, describe how the Great Rift Valley may have been formed by tensional forces.

(ii) With the aid of diagrams, describe how the Great Rift Valley may have been formed by tensional forces.

(ii) With the aid of diagrams, describe how the Great Rift Valley may have been formed by tensional forces.

(ii) With the aid of diagrams, describe how the Great Rift Valley may have been formed by tensional forces.

(b) Explain three ways in which faulting may influence drainage systems.

Uplifting of landscape which leads to faulting may cause rivers to reverse their direction of fowl back tilting.
Vertical faulting across a river may cause a change in the local base level resulting in the formation of a waterfall.
Basins/depressions resulting from faulting may be filled with water to form lakes/inland drainage basins.
Some rivers flow along fault lines forming fault guided drainage patterns.
Some rivers may disappear into the ground through a fault forming underground streams.
Uplift of some river channels may cause river rejuvenation.
Faulting may expose underground water leading to formation of springs.

Name three types of faults

30/1/2021

KCSE Geography Paper 1 2016 Section A Question 9.

(a) (i) Name three types of faults.

Normal fault,
Reverse fault,
Tear or shear or slip or transform or wrench or strike slip fault,
Thrust fault,
Anticlinal fault

(ii) Apart from compressional forces, explain two other processes that may cause faulting.

Faulting may be caused by force acting horizontally away from each other which causes tension in the crystal rocks. Due to tensional forces the rocks stretch and fracture causing faults.
Faulting may occur where horizontal forces act parallel to each other in the opposite or same direction resulting in shearing.
Faulting may also occur due to vertical movements which may exert a strain in the rocks making them to fracture

The block diagram below represent part of earth’s crust which has been subjected to tensional forces.

12/1/2021

The block diagram below represent part of earth’s crust which has been subjected to tensional forces.

a) Name (i) the slope marked A (1mk)

a)

(i) The slope marked A-Heave/Escarpment
(ii) The angle marked B-hade (2mks)

b) State three ways in which faulting can influence drainage systems.(3mk)

Vertical faulting across a river may cause waterfall
Rift faulting in an enclosed area may lead to formation of a lake if rivers drain into the basin/inland drainage
Some rivers flow along fault lines/fault guided drainage
Uplifting of landscape which leads to faulting may cause rivers to their direction of flow.

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