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   DIR Return to: WAEC/NECO 2020/2021 UPDATE
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       #Post#: 64--------------------------------------------------
       WAEC 2020/2021 VERIFIED GEOGRAPHY PRACTICAL ANSWERS
   DIR By: anephy
       Date: February 11, 2020, 1:18 am
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       (3a)
       (i) Latitude
       (ii) Altitude
       (iii) Ocean currents
       (3b)
       (i) It has constant high temperature with daily temperature of
       26°C with no winter
       (ii) It has annual rainfall of over 200cm and rainfall is
       throughout the year
       (iii) It has high humidity all year round with double maxima of
       rainfall
       (iv) It has small annual temperature range of 2°C - 3°C
       (v) It has convectional rainfall accompanied by lightening and
       thunder.
       (4a)
       Weathering is the physical disintegration and chemical
       decomposition of rocks in soil.
       (4b)
       (i) Temperature
       (ii) Rainfall
       (iii) Humidity
       (4c)
       Exfoliation is a form of mechanical weathering in which curved
       plates of rock are stripped from rock below. Exfoliation process
       occurs in arid and semi arid areas. When arid and semi amid
       areas have high day and low night temperatures, rocks
       alternatively heat and cools. This makes the rock to expand
       during the day as a result of high temperature and contract
       during the night. When temperature decreases drastically
       continuous expansion and contraction leads to the peeling off of
       the outer layers of the rocks.
       (8a)
       Atmospheric pollution refers to the release of a substance into
       the air in excessive quantities or to the level that is harmful
       to man, animals and plants.
       (8b)
       (i) Mobile source eg exhaust
       (ii) Area sources eg Bush burning
       (iii) Natural sources eg Earthquake, volcanoes
       (iv) Stationary sources eg harmful gases from oil refineries and
       factories
       (8c)
       (Choose Any Four)
       (i) Atmospheric pollution causes impaired health such as the
       irritation of eyes,lungs and skin cancer
       (ii) It causes acid rain which can corrode materials and burn
       green plant
       (iii) It increases and decreases the temperature
       (iv) It causes the destruction of the ozone layer
       (v) It can cause accidents as a result of poor visibility
       (vi) It affects plant growth and aquatic life
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