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NABTEB 2016 Geography 1... By gurushood.com






NABTEB GEOGRAPHY1 ANSWERS
2a)
Rotation of the earth can be defined as the movement of the
earh round the sun on its axis
2b)
-Day and Night
-Deflection of winds and ocean current
-Apparent sunrise and sunset
-Time differences from place to place
-Daily rising and falling of the tide
2c)
-Day and Night:As the earth rotates only one part of the
earth’s surface facing the sun experiences daylight while the
other part of the sun backing the sun will experience darkness
-Apparent sunrise and sunset:During rotation of the earth part
of the earth that emerges from the darkness into the rays of
the sun experiences sunrise while the part that is moving away
from the sun rays to darkness will experience sunset
-Time differences from place to place:The earth rotates
through 360 degrees in every 24 hours which means that for
every one hour it passes through 15 degrees.Since earth
moves from west to east it means that for every 15 degrees
the east is always one hour ahead of time while the west is
always one hour behind
3a)
-Igneous rock
-Sedimentary rock
-Metamorphic rock
3b)
-Igneous rocks are crystalline in structure
-They are resistant to erosion and other elements of climate
-Sedimentary rocks determine the availability and supply of
underground water
-They determine the quality of the soil nutrients
3c)
-Raw materials for industrie-Source of food nutrients
-Formation of soil
-Tourist centres
-Source of minerals
-Construction purpose
5a)
Earthquakes can be defined as the sudden movements or
vibrations in the earht crust.They occur as a result of
disturbance within and below the earth crust
5b)
-It occur as a result of disturbance within and below the earth
crust
-The development of faults in the crust which result from the
collision between the tectonic plate
-The movement of molten rock below or within the crust or
the sudden release of stress which has slowly built up along
the plane
5c)
-Earthquakes cause death of people and animals in places
where its occurs
-They also cause the destruction of
buildings,roads,bridges,railways and telecommunication
-They also displace parts of the earth crust either vertically or
laterally
-They also lower or raise the coastal rocks
-They can also raise or lower parts of the ocean floor
6a)
Soil erosion can be defined as a process whereby the top soil
is gradually removed that is transported away by erosional
agents such as water,wind and ice
6b)
-Deforestation
-Bush burning
-Overgrazing
-Cultivating along the slope
-Excessive rainfall/wind
6c)
-Soil erosion causes the removal of top fertile soil meant for
crop cultivation
-it causes loss of farmlands
-It causes loss of lives and properties
-It leads to damage of roads and railway lines
6d)
-Afforestation:This is the planting of trees to control erosion
-Controlled grazing:Few animals should be allowed to graze on
an area to avoid soil erosion
-Contour ploughing:This is the making of ridges across the
slope to to control erosion
-Cover cropping:This is the planting of legumes to cover the
soil to prevent erosion
Gurushood.com
7a)
karst topography refers to a large strectch of land occupied
by limestone which possess a unique type of topography
7b)
i)solubility
ii)presence of depressions
iii)absence of luxuriant vegetation
iv)absence of surface drainage
7ci)
i)grikes
ii)clints
iii)doline
iv)uvala
7cii)
i)karst region provides limestone which is an essential raw
material for cement making
ii)limestone is also used in smelting of tin and iron
iii)the limestone region is also a beautifull area of to urism
iv)it is also a source of underground water

4a)
i)hydraulic action this is a process where fast flowing water
force itself to it cracks and carities within the vally under
pressure and enlarges the cracks
ii)corrasion is the wearing away of the sides and floor of the
river vally with the aid of sand,pebbles,sifts and boulders
which are being transported
iii)affrition this is the wearing down of load as they collide
with one another and the floor and sides of valley.
4b)
i)V-shaped valley
ii)gorge
iii)river capture
iv)rapid and contract
4c)
i)flood plain are very fertile for agricultural activies
ii)flood plain especially level ones are good for human
habital
iii)some flood plain are rich in source of mineral like
petroleum
iv)flood plain in low rainfid are used for rearing of animal

1a)
Scale: 1:50,000
1b)
14km*50,000=700,000km
1c)
Breadth->12.5km*50,000=625000km
Length->13km*50,000=650,000km
Area=Length*Breath
Area=625,000*650000
=406250000000km^2
=4.0625*10km^2
1d)
192degrees
1e)
3000km
1f)
The drainage from east to the north-east
1g)
Mountain or hill



Mayer. B.D










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