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Waec 2019 Physics Practical Answers – May/June Expo




Length of minor road from the dispensary at Uhomara to Ugiavon = 17.5cm on the map

Scale of map = 1:50,000cm
.:. 17.5cm on the ground = 17.5 x 50,000/10,000
= 8.75km

-human Features-

-Physical features-





(Choose Any five)
(iii)Continentality or distance from the sea
(iv)ocean currents
(v)planetary winds and pressure belts
(vi)slope and aspect

(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.

Weathering is defined as the gradual breaking down or disintegration of rocks by either physical or chemical process.

(i) Temperature
(ii) Rainfall
(iii) Humidity

Exfoliation is a process in which large flat or curved sheets of rock fracture and are detached from the outcrop due to pressure release: As erosion removes the overburden from a rock that formed at high pressure deep in the Earth´s crust, it allows the rock to expand, thus resulting in cracks and fractures along sheet.

Atmospheric pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles.

(i)Mobile source
(ii)Area sources
(iii)Natural sources
(iv)Stationary sources

(i)Deterioration of fields
(ii)Acid rain and Smog effect
(iii)Respiratory health problems
(iv)Climate change



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(i) Climatic Conditions: Climatic or soil conditions in certain areas are suited for the production of a particular product.
(ii) Nearness to Raw Materials: Nearness to raw materials is a dominant factor in the location of an industry, especially that industry which uses bulky raw material that is expensive to transport and looses weight in the manufacturing process.
(iii) Nearness to Sources of power: Nearness to the sources of power is another important cause of localisation of industries.
(iv) Nearness to Markets: Before starting an industry, an entrepreneur has to take into consideration the market potentialities of his product.
(v) Adequate and Trained Labour: Industries tend to be concentrated in those areas where adequate supplies of trained labour are available.

(i)Reputation: The place where an industry is localised gains reputation, and so do the products manufactured there. As a result, products bearing the name of that place find wide markets, such as Sheffield cutlery,
(ii)Skilled Labour: Localisation leads to specialisation in particular trades. As a result, workers skilled in those trades are attracted to that place.
(iii)Growth of Facilities: Concentration of an industry in particular locality leads to the growth of certain facilities there. To cater to the needs of the industry, banks and financial institutions open their branches, whereby the firms are able to get timely credit facilities.
(iv)Subsidiary Industries: Where industries are localised, subsidiary industries grow up to supply machines, tools, implements and other materials, and to utilise their by-products.
(v)Employment Opportunities: As a corollary to the above, with the localisation of an industry in a particular locality and the establishment of subsidiary industries, employment opportunities considerably increase in that locality.

(i)houses are close together.
(ii)Social services are available in these settlements.
(iii)Roads are narrow in the old parts of these settlements.
(iv)People from different castes, religions, races and ideologies live together in these settlements and hence they have a better social life.

(i)Selling expensive or rare goods/services e.g. Lagos.
(ii)Providing jobs in industry or services.
(iii)As an administrative centre for the area around it.
(iv)As an entertainment centre, for example offering sporting attractions, shopping areas, restaurants.

(Choose Any Four)
(i)Accessibility and Relief
(ii)Economic activities
(iii)Provision of social amenities
(iv)Relief and climate
(v)Nature of the soil
(vi) Climate and Administration



(i) Trees have buttress roots and aerial roots
(ii) It has scanty under-growth
(iii) Plants have soft and green barks to make transportation efficient

(i) Source of raw materials for industries: rainforest has a lot of timber’s in which the industries use in their various activities. By this, the government enjoy the benefit of tax to increase government revenue
(ii) Provision of food: It also serve as source of food for the people which can be consumed locally and internationally
(iii) Provision of medicine; Some plant in this belt has medicinal values to cure diseases which can boost the country’s image
(iv) Source of fuel: In this belt, wood can be obtained which is used for cooking

(i) Coal
(ii) Petroleum

(i) hydro-power
(ii) Solar energy

(i) Lack of modern technology for the mining and extraction of coal
(ii) Lack of good railway transportation system for conveying coal from mining to thermal plants.
(iii) Collapsed and unmaintained thermal plants
(iv) Lack of functional refineries for refining petroleum products.

(i) Investment by the government in putting adequate technology to resuscitate coal mining
(ii) The development of efficient railway system across the country, especially carrier trains for goods.
(iii) Overhauling of existent thermal plants to become functional and the building of new plants across critical locations of the country.
(iv) The government must repair the dormant refineries in the country, and build new high capacity ones.


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