Completed and verified
Geo-obj
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Objective answers now ready click the image below 20x to view it
Geo- Answers !
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5a )
i)focus - is the point at which the shock
originates
ii )epicenter- is the point on the earth surface
directly above the focus or where the shock
waves fiest hit the surface
5b )
TABULATE
DIFFERENCE
earthquake
i)it is the result of distrurbance or
movement within and below the earth crust
ii )it occurs below the earth crust
Vulcanicity
i)it is the process by which molten rock or
magma is forced into the earth crust or
surface
ii )it might occur on the earth surface
SIMILARITIES
i)they are both landform features
ii )they are both destrutive occurance
iii )they both spoils and degrades the earth
surface
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(2a)
-It determines a year:The time taken by
the earth to
move around the sun or complete its
orbit is fixed
at 365(1/4)days
-It causes chnage in seasons:Areas like
the west /
Nigeria might have rainy season while
other areas
have dry season while the north or
temperate
region might be in winter or summer
-It causes varying day and night at
different times
of the year.The length of day and night
depend in
the earth and it position with the sun
-It causes changes in the attitude or
height of the
sun result in equinox and solstices
(2b)
-Crust(Lithosphere)
-Mantle(Mesophere)
-Core(Barysphere)
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7a)
-It is a source of food supply
-It is a source of firewood
-It prevents erosion
-It is a source of raw material for index
7b)
-Transportation problem:It is very hard to move goods and services from one place to another due to bad weather and others
-It causes soil erosion:Vegetative conver tend to spoil the land and cause erosion
-High cost of exploitation:There is high cost of production
-Depletion of natural forest products:It limits the use of forest products and its cultivation
-Flooding:The vegetative cover when harvested spoils the land and can lead to flooding
-Disappearance of wildlife:Many wild animals live in the forest and cannot live on a bare plain land
7c)
-Improvement of infrastructures like roads
-Planting cover of cover crops
-Curving down and subsidy to the farmers
-Afforestation
-Encouragement of afforestation
7d)
-Renewable resources are natural while non renewable resources are man made or artificial
-Renemable resources can be reversed while non renewable cannot
-Renewable resources cannot be exhausted while non renewable resources can be exhausted
3a)
metamorphic rocks are the changed rocks,it is formed from the pre-existing igneous or sedimentary rocks which have been changed as a result of heat and pressure eg marble,gnesis,schist,graphite.
3b)
i)mountains-are formed when rock are subjected to contractic or compressond forces which are chemical,physical or other factors
ii)plateaux-this is formed when rock are subjected to mass wasting or mass movement
iii)plains-rocks helps to form plains when sedimentary are bedded or stratified
3c)
i)it serves as sources of fuel
ii)it is used for construction purpose
iii)it is used for ornamental eg marble
iv)it serves as sources of metal
v)it serves as a raw materials for the industries
vi)it serves as source of food nutrient
vii)they help in soil formation
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