GEOGRAPHY TOPICAL QUESTIONS AND ANSWERS - ATIKA SCHOOL

State three climatic conditions experienced in the Sahara desert

1/3/2021

KCSE Geography Paper 1 2001 Section A Question 4.

(a) State three climatic conditions experienced in the Sahara desert

Rainfall is low/ below 250mm per year / dry climate
Rainfall is erratic/ flash floods and sporadic rain/ unreliable
Temperature are high throughout the year/ over 300C/ hot climate
Intense solar radiation
The diurnal range of temperature is very large/ very hot days and cool and nights
High rate of evaporation
Skies are always cloudless/ clear sunny days/ high terrestrial/ radiation

(b)State three ways in which plants adapt to hot desert conditions

Some have long roots to tap underground water
Some have small waxy leaves to reduce transpiration
Some trees shed their leaves during dry seasons
Some plants have thick barks stems/ leaves to sore water
Some plants produce seeds that lie dormant awaiting rains
Some trees are umbrella- shaped to produce shade to the stem roots
Some plants have quick recovery ability after wilting
Some are halophytic/ salt tolerant to survive in areas of poor drainage

(a) State three climatic conditions experienced in the Sahara desert (b)State three ways in which plants adapt to hot desert conditions

What is desertification?

26/2/2021

KCSE Geography Paper 1 2002 Section A Question 3.

a) What is desertification?

It is the process through which marginal lands are degraded. Climate variations and human activities / encroachment of arid conditions into formerly productive areas.

b) State two negative effects of desertification.

It leads to shortage of water / destruction of water catchment areas.
It leads to drying up / of destruction of vegetation.
It leads to drying up of soils / development of infertile soils.
It causes out migration of population.

a) What is desertification? b) State two negative effects of desertification.

State four ways in which drought affects the agricultural sector in Kenya

21/2/2021

KCSE Geography Paper 2 2005 Section A Question 4.

State four ways in which drought affects the agricultural sector in Kenya

Leads to shortage / lack pasture
Leads to crop failure
Leads to shortage/ lack of water for livestock / irrigation
Leads to shortage of agricultural raw materials for agro- based industries
Leads to reduction in export of agricultural commodities in the farmers income

State four ways in which drought affects the agricultural sector in Kenya

Causes of desertification and environmental hazards experienced in Kenya

20/2/2021

KCSE Geography Paper 2 1999 Section A Question 5 with Answers.

(a) Apart from desertification, name two other environmental hazards experienced in Kenya

Lightening
Strong winds
Hailstorms
Dust storms
Pest/ diseases/ cholera/ typhoid/ malaria
Floods
Landslide
Pollution Garbage
Soil erosion
Fire

Apart from desertification, name two other environmental hazards experienced in Kenya

(b) State two causes of desertification

How is an oasis formed?

17/2/2021

KCSE Geography Paper 1 1999 Section A Question 4.

(a) The diagram below shows a barchan

(a) The diagram below shows a barchan

(ii) Name the air current marked L

K The horn
L Eddy current

(b) How is an oasis formed?

A pre- existing depression/ localized fault is deepened by eddy actin/deflation
Gradually the depressions excavated through the removal of the unconsolidated materials/ wind abrasion
The surface is lowered until it reaches the water – bearing rock / aquifer
Water oozes out of the ground and collects in the depression to form an oasis

Name two major deserts found in Africa.

4/2/2021

KCSE Geography Paper 1 2013 Section B Question 10.

(a) (i) Name two major deserts found in Africa.

Sahara
Kalahari
Namib

The diagram below represents features resulting from wind erosion in a desert. Use it to answer question a(ii).

The diagram below represents features resulting from wind erosion in a desert. Use it to answer question a(ii).

(ii) Name the features marked U and V.

U - Furrow
V - Ridge/yardang/zeugen

The diagram below shows a section of a river. Use it to answer the questions that follow.

4/2/2021

KCSE Geography Paper 1 2013 Section A Question 3.

The diagram below shows a section of a river. Use it to answer the questions that follow.

The diagram below shows a section of a river. Use it to answer the questions that follow.

(a)Name the features marked S and T.

S - ox-bow lake
T - alluvial deposits

(b)State three conditions that are necessary for the formation of the feature marked S.

Presence of pronounced meanders in the flood plain.
Heavy load being carried by the river.
A reduction in the river gradient/reduction in the river energy to erode vertically/ low velocity.
Presence of obstacles in the river channel.
Laterial erosion on the outer side of the river banks.
Deposition on the inner side of the river banks.
Periodic flooding to cut off neck of pronounced meander.

Explain two reasons why wind is the dominant agent of erosion in arid areas.

2/2/2021

KCSE Geography Paper 1 2014 Section A Question 4.

(a) Explain two reasons why wind is the dominant agent of erosion in arid areas.

The areas have scanty/ no vegetation which exposes the land to erosion.
The areas experience strong tropical winds which erode the materials.
The areas have dry unconsolidated soils/materials which are easily eroded.

(b) Identify two features formed as a result of wind deposition in arid areas.

Loess
drass/draas
dunes / self / longitudinal dune, barchan, wake /transverse dunes.

(a) Explain two reasons why wind is the dominant agent of erosion in arid areas. (b) Identify two features formed as a result of wind deposition in arid areas.

Name the three major deserts in Africa.

30/1/2021

KCSE Geography Paper 1 2016 Section A Question 5.

Name the three major deserts in Africa.

Sahara
Kalahari
Namib

Name the three major deserts in Africa.

List the three types of dunes.

27/1/2021

KCSE Geography Paper 1 2018 Section A Question 5.

(a) List the three types of dunes.

Barchans
Seif dunes/longitudinal/linear
Transverse/wave dunes.
Star dunes
Draas

(b) Identify two processes through which wind transports materials in arid areas.

Suspension
Saltation
Surface creep/traction.

(a) List the three types of dunes. (b) Identify two processes through which wind transports materials in arid areas.

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