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Answers 1.C Implicit Costs: Salary of the owner for his own services and interest on owner’s own capital. 2.A Average total cost is the sum of average fixed term and average variable cost. . 3 .D short run (where all inputs are not variable) Long run: refers to the period of time during which all factors of production (inputs) can be varied 4.B Short run – refers to the period of time over which the amount of some inputs – called fixed inputs cannot be changed. 5.C Marginal cost is the addition to total cost as one more unit of output is produced. 6.C Social cost = private cost + external cost . 7.C TC/n give us average cost or average total cost. 8.A & B 👆👆👆 9.B Ac=TC/n......500/20=25 600/30=20 decreasingly TVC=600-600=100 AFC=TFC/n...200/20=10....200/30 decreasing AVC=TVC/n......300/20=15....400/30 increase approximately by 9. 10.C Short – run:- it refers to the period of time over which the amount of some inputs, called the fixed inputs cannot be changed.This implies that an increase in output in the short run can be brought about by increasing those inputs that can be varied, known as variable inputs. 11.A 12.D When MP curve intersects AP curve. AP is at maximum 13.B The marginal product of 5th unit of labour employed = TP6– TP5 =140×6-120×5 = 240 14.C all of them are answers except "C" 15.C 16.all except C&D Average fixed cost always declines as output rises because the fixed cost is getting spread over a larger number of units. Average variable cost typically rises as l output increases because of diminishing marginal product. Average total cost reflects the shape of both average total cost reflects the shape of both average fixed cost and average variable cost. marginal cost isn't static 17.B 18.A 19.A 20.A Average cost tells us the cost of a typical unit of output if total cost is divided every overly over all the units produced 21.C Marginal cost tells us the increase in total cost that arises from producing an additional unit of output. 22.B 23.B 24.B 25.A.

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16.The smallest regions of Africa is A. Eastern Africa B. western Africa C. southern Africa D. Northern Africa 17. Which one is the most populous African region? A. Western Africa B. Southern Africa C. Northern Africa D. Eastern Africa 18. The extreme points of Africa continents to the east? A. Cape Guardafui B. Cape Bon C. Cape Verde D. Cape Agulhas 19. Contour lines overlap in the case of A. an undulating plain B. a concave slope C. Waterfall D. a convex slope 20. In which courses do you get waterfalls in a river system? A. lower course B. upper course C. Middle course D. Mouth of the river 21. But all are the uses of GIS? A. For traffic control B. For resource management C. Military base management D. None of the above 22. When two points “X” located at the foot of the eastern escarpment in Ethiopia at an altitude100mbsl and “Y” located at 1900masl are to be joined with a road and a railway respectively? A. 8km and 100km B.16km and 150km C. 50km and 8km D. 100km and 200km 23. One is not wrong about urban settlement? A. Narrow and irregular roads B. Covers small areas C. Houses made from simple material D. planned streets 24.From hierarchies of settlement which one has large population and services get diversified? A. Metropolis B. Megalopolis C. Cities D. Town 25. The point at which the river begins? A. Tributary B. Source C. Confluence D. Channel

RIGHT WAY ACADEMY GEOGRAPHY TEST OUT OF 25 % 1.Which of the following drainage systems is the smallest in Africa? A.The Atlantic drainage system B. The inland drainage system C.The pacific ocean drainage system D.the Mediterranean drainage system 2. Which one of the following major river of the Atlantic Ocean Drainage System is the largest in terms of total annual discharge? A. Congo River B. River Senegal C. River Gambia D. River Niger 3. Which one of the following African rivers is the longest and categorized under the Mediterranean Drainage System? A. Amazon River B. Ghenalle river C. Nile River D. Congo river 4. Which one of the following natural lakes of Africa is the largest lake? A. Malawi. B. Chad. C. Victoria. D. Tana 5. Which one of the following natural lakes of Africa is the deepest? A. Chad. B. Malawi. C. Victoria. D. Tanganyika. 6.The most populous sub – continent of Africa is A. Eastern Africa B. Western Africa C. Northern Africa D. Southern Africa 7. Which region of Africa is the area with the highest life standard? A. Central Africa. B. Eastern Africa. C. Western Africa. D. Northern Africa. 8. Which one of the following sub – divisions of Africa is the most urbanized? A. Western Africa B. Northern Africa C. Central Africa D. Southern Africa 9. Which part of Africa consists of all climate type exceptMediterranean climate and Vegetation? A. Central Africa. B. Eastern Africa. C. Western Africa. D. Northern Africa. 10. The two water bodies that are connected by the straight of Bab-el-Mandeb are: A. Atlantic Ocean and Mediterranean Sea. B. Red Sea and Mediterranean Sea. C. Red Sea and the Gulf of Aden. D. Indian and Atlantic Oceans. 11. One is formed as a result of compressional force? A. Atlas mountain B. Ras Dashen mountain C. Killimanjaro mountain D. Meru Mountain 12. Which era is responsible for the formation of the present surface configuration of the African continent? A. Mesozoic era B. Paleozoic era C. Precambrian era D. Cenozoic era 13. In which era, period and epoch do you live respectively? A. Mesozoic era, cretaceous period and Eocene epoch B. Cenozoic era, quaternary period and Pleistocene epoch C. Cenozoic era, quaternary period and Holocene D. Cenozoic era, quaternary period and Miocene epoch 14. Which one of the following is the major geological event that took place during the Paleozoic era? A. series of denudation and peneplanation B. The uplifting of the land in the horn of Africa C. The formation of the Mediterranean sea D. The formation of basement complex rock 15. Which one is odd? A. Cambrian period _____ice age in parts of North Africa B. Pliocene epoch ______ intense volcanic eruption in east Africa C. Jurassic period__________mountain ranges uplifted D. Quaternary period ______oldest rocks formed .

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