Question 1 of 20 1,492 total questions
Desert encroachment can best be controlled by
A erecting barriers
B deforestation
C overgrazing
D slopewise cultivation
E afforestation
In which of the following natural vegetation belts are greenheart, mahogany and ebony commonly found?
A Selvas
B Marguis
C Taiga
D Veldt
E Campos
Which of the following names refers to temperate grasslands?
A Lianos
B Campos
C Montane
D Steppes
E Alpine
Trees in Sudan savanna adapt to the climate of their environment by
A having large lateral roots with waxy hairy and broad leaves
B developed thick, succulent stems to store up water
C shedding leaves in the dry seasons and having long tap roots with umbrella-shaped crowns
D producing seeds which lie dormant during the dry season
E developing broad, lateral root system for support
Which of the following soil types is the most permeable?
A Loam
B Clay
C Sand
D Laterite
E Peat
The size of the individual grains of soil is referred to as the
A profile
B porosity
C density
D colloid
E texture
The dry adiabatic lapse rate refers to the fall in temperature with height of
A 0.00650 C per 1000m
B 0.0650 C per 1000m
C 0.650 C per 1000m
D 6.50 C per 1000m
E 65.00 C per 1000m
Koppen's classification of climate is based on
A temperature and presure
B preessure only
C winds and humidity
D precipitation and temperature
E rainfall only
Winds whose direction is reversed from one season to the other are called the
A Harmattan
B Mistral
C Fohn
D Monsoon
E Chinook
Temperatures of adjacent coastlands are reduced when on - shore winds blow over cold currents because the
A rainfall in sunch areas is susually heavy
B current influences the air presure
C current increases the total rainfall in such areas
D current influences the temperature of the prevailing winds
E temperature influences the speed of the wind
Which of the following best explains why wind action is more predominant in Arid regions than in Humid regions?
A Loose surface materials and the absence of vegetation cover
B Excessively high temperature during the day and night
C Insufficient and unreliable rainfall
D Lack of surface drainage and the presence of strong winds
E Gently rolling terrain and fast-flowing rivers
All the following are causes of mechanical weathering except
A temperature changes
B rain action
C alternate wetting and drying
D frost action
E action of plants and animals
Mountains formed as a result of compressional forces in the earth's crust are
A block mountains
B fold mountains
C volcanic mountains
D residual mountains
E dissected mountains
A large expanse of low, level land, formed due to an uplift of part of the sea floor bordering a continent is called
A a flood plain
B an outwash plain
C a deltaic plain
D a high plain
E a coastal plain
Which of the following rock types is coal associated with?
A Mechanically-formed sedimentary rocks
B Hard crystalline rocks
C Organically-formed sedimentary rocks
D Pultonic igneous rocks
E Volcanic igneous rocks
They are formed in layers and derived from old rocks and the remains of dead organic materials. This description refers to
A metamorphic rocks
B igneous rocks
C intrusive rocks
D crystalline rocks
E sedimentary rocks
If the local time at a place X is 12.00 noon when the G.M.T is 5.00a.m then X is located on longitude
A 1050 E
B 100 W
C 750 W
D 750 E
E 1800 E
When the sun is directly overhead at the tropic of Capricorn (231 / 2 0 )on 22nd December, the Northern Hermisphere experiences its
A twilight
B winter solstice
C summer solstice
D spring equinox
E autumn equinox
The equatorial diameter of the earth is approximately
A 6.760km
B 8.760km
C 14.76km
D 10.760km
E 12.760km
Which of the following countries is located within the Horn of Africa?
A Swaziland
B Chad
C Kenya
D Djiboti
E Libya
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