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Effects of the international dateline on time are;A day is gained if one travels across the IDL to the EastA day is lost if one travels across the IDL to the West.Info: In simple terms, IDL (International Date Line) is a line that runs from the north to the south in the middle of the earth. Read more about IDL.
Effects of soil creep on the earth surface include;It can push fence posts and telegraph poles from their original positions so they appear inclinedStone walls built across the slope can be destroyed by the creeping soilSoil creep results in the accumulation of soil particles at the base of the slopeSoil creep can also interfere with infrastructure such as road and railwaysWhen fine soil particles move downhill the upper slope are left bare and exposed
Effects of pests on Beans include;Some pests transmit disease e.g. aphidsSome pest eat growing points causing stunted growthSome pests eats pods/fruit lowering the quality/quantity of cropSome pest eats roots, damage/causing wiltingSome pests injure the plant causing wound which allow germs to enter the plantSome pests eat the seeds in the soil reducing plant population.
Effects of the energy crisis on the economies of African countries are;Increases petroleum prices lead to escalation in transport costs/affects tourism.Low rate of economic growth because of over expenditure on oil importation.The price of commodities rises leading to inflation.
Effects of Portuguese rule on the East African Coast include;It lead to the decline of Indian Ocean trade and local trade.It led to loss of lives through raids/introduction of many weapons lead to insecurity in the place.It led to decline and ruin of towns e.g GediTheir raids led to destruction of propertyHeavy taxes imposed on coastal people hindered coastal economic development.They built fort Jesus and Vasco da Gama which became historical monument.Introduced new crops to the coast e.g maize and cashew nutsTheir language enriched Kiswahili vocabulary through borrowing of words e.g pesa, baruti.They improved links between the Coast and India/GoaThey practiced slave trade and this led to depopulation and human suffering