1-10 BCACDBCEAE
11-20 ECDAABCECA
21-30 ADBBAADAEC
31-40 EEEDDDAEAC
41-50 ACAAADBADE
51-60 ADEACCCBDD
3a)
i)Erosional plains
ii)Structural plains
3b)Structural plains:
They are relatively undisturbed horizontal
surfaces of the Earth. They are structurally
depressed areas of the world that make up
some of the most extensive natural lowlands on
the Earth's surface.
Erosional plains:
They are plains that have been leveled by
various agents of denudation such as running
water, rivers, wind and glacier which wear out
the rugged surface and smoothens them. Plain
resulting from the action of these agents of
denudation are called peneplains (almost plain)
while plains formed from wind action are called
pediplains.
3c)
i)for farming
ii)Building industrial Area
iii)Building residential area
iv)Grazing Livestock
v)Settlement
8a)
1)Pointdata exists when a feature is associated
with a single location in space. Examples of point
features include a fire lookout tower, an oil well
or gas activity site, and a weather station.
2)Lineardata exists when a feature's location is
described by a string of spatial coordinates.
Examples of linear data include rivers, roads,
pipelines, etc.
3)Area data exists when a feature is described
by a closed string of spatial coordinates. An area
feature is commonly referred to as apolygon.
Examples of polygonal data include forest
stands, soil classification areas, administrative
boundaries, and climate zones.
8b)
1)it is crucial to making aerialand satellite
imagery, usually raster images, useful for
mapping as it explains how other data, such as
the above GPSpoints, relate to the imagery.
2)it is very essential information may be
contained in data or images that were produced
at a different point of time.
3)it obtained from surveying tools like total
stationsmay be given a point of reference from
topographic maps already available.
4)it can be used to analyze the changes in the
features under study over a period of time.
7ai)
Gully erosion Can be defined as the removal of
soil along drainage lines by surface water runoff.
7aii)
Sheet Erosion can be defined as the erosion that
removes surface material more or less evenly
from an extensive area as contrasted with
erosion along well-defined drainage lines that
produces or enlarges gullies or ravines.
7bi)
Overgrazing occurs when farmers stock too
many animals such as sheep, cattle or goats on
their land.
7bii)
Overcropping is when the land is being
continuously under cultivation and is not allowed
to lie fallow between crops.
7ci)
I)Planting Vegetation
II)Retaining Walls/Edging
5a)
Volcanicity can be define as the eruption of
molten magma onto the earth surface due to
high temperature and pressure of the molten
magma.
5b)
Batholity - a very large igneous intrusion
extending to an unknown depth in the earth's
crust. While
Dyke - is a thick wall that is built to stop water
flooding onto very low-lying land from a river or
from the sea.
5c)
i)Earthquake
ii)fast flood
iii)Rock falls
iv)Mud slide...
PLEASE KEEP REFRESHINGX
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