(i) State three ways in which you would prepare for the study.
Carry out reconnaissance survey.
Prepare a sketch map.
Formulate objectives/hypothesis for the study.
relevant stationary.
Prepare a working schedule.
Seek permission from relevant authorities.
Read from reference book
(ii) Identify three methods of data collection you are likely to use.
Direct observation.
Interviewing the workers.
Administering questionnaire
(iii) Describe three negative effects of open cast mining on the environment you are likely to
identify.
Pollution- During the mining process, toxic gases may be emitted from the mines leading to
air pollution.
Dust produced during mining pollutes the atmosphere.
Derelict land – The land is left with gapping quarries/holes which are ugly and therefore
interferes with the natural beauty of the landscape.
The heaps of waste rock/overburden hinders any other form of land use and creates a
landscape that is expensive to rehabilitate.
Water that collects in hollows left by open cast mine creates ponds which can become
habitat for water vectors.
It destroys natural vegetation which is cleared before extraction of the mineral.
Mass wasting of environment caused by explosives and heavy machinery during mining. ?
Soil erosion- clearing of land before extraction of minerals encourages soil erosion.
gideon1 answered the question on September 29, 2017 at 17:33
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