(i) Mode of occurrence of minerals Minerals that occur at or near the surface can be cheaply mined
using Open Cast Mining Method or Alluvial Mining Method while mineral that occur at great depths
in the earth’s crust are expensive to extract hence deep shaft method can be applied.
(ii) Quality of the ore The higher grade ores that have no impurities are economical to mine as they
yield large amount of good quality mineral than low grades ore.
(iii) The size of the mineral deposit. Large mineral resources justify the installation of expensive
equipment for exploitation while in small reserves, cheap affordable methods are employed. If the
mineral is of high value, high powered machines can be used on small quantity deposit.
gideon1 answered the question on September 29, 2017 at 17:31
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Give three factors that favour fishing in Lake Victoria.
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Give three factors that favour fishing in Lake Victoria.
Date posted:
September 29, 2017
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State three characteristics of horticulture farming in Kenya.
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State three characteristics of horticulture farming in Kenya.
Date posted:
September 29, 2017
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The diagram below shows the revolution of the earth around the sun. Use it answer the questions that follow.
(Solved)
The diagram below shows the revolution of the earth around the sun. Use it answer the questions that follow.
.jpg)
(i) If the earth takes 366 days to make a complete revolution during a leap year, how long will it take to move from 1 position to position 4?
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Date posted:
September 29, 2017
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(a) What is vegetation? (b) Explain how the following factors influence the distribution of vegetation: (i) relief(ii)soils(c) Describe the characteristics of the savanna vegetation region....
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Date posted:
September 20, 2017
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Date posted:
September 16, 2017
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Date posted:
September 16, 2017
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Explain how the following factors influence the exploitation of minerals (a)Mode of occurrence of minerals (b)Transport (c) Level of technology
(Solved)
Explain how the following factors influence the exploitation of minerals
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(b) Transport
(c) Level of technology
Date posted:
September 16, 2017
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Answers (1)
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You are planning to carry out a field study in a forest
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You are planning to carry out a field study in a forest
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September 15, 2017
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State three conditions that are necessary for the formation of an ox-bow lake
Date posted:
September 15, 2017
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a.i)Name three methods of mining ii)Name two sea ports through which some of the minerals mined in east Africa are exported. (b)State five factors that influence...
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Date posted:
September 14, 2017
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September 14, 2017
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With the aid of diagrams, describe features resulting from river capture
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September 12, 2017
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List the methods used to control tsetse flies in Kenya.
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July 4, 2017
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Highlight rivers in Kenya to the West of the Rift Valley which cause large scale flooding.
Date posted:
July 3, 2017
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Name physical regions through which River Tana passes.
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July 3, 2017
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Explain factors that lead to frequent flooding in the lake region of Kenya.
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July 1, 2017
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Give the factors that contribute to the emergence of slums in urban centres.
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June 30, 2017
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Give reasons why the northern parts of Kenya are sparsely populated.
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June 30, 2017
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Highlight measures which the government of Kenya has taken to reduce infant mortality.
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June 26, 2017
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Discuss the physical factors that influence population distribution in East Africa.
Date posted:
June 26, 2017
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