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Civics Grade 12 - unit 4
1.The principle that state as ''Those who work hard should be benefited more'', is called ?
A. The ability to pay principle
B. Principle of burden and benefits
C. Beneficial principle
D. Absence of equity principl
2.All of the following are the major rule of judiciary excep_________
A. Sustaining democracy and Democratic system
B. defending the constitution
C. Upholding the international values and normes
D. making the constitution
3. What does domesticating international law and norms means ?
A. Making these laws as a part of law of the land
B. rejecting the forbidden laws from a part of the law of the land.
C. rejecting these rules for amendment of a new constitution
D. interpreting the laws to within recognition of the law of the land
4. Which branch of government has responsibility for signing international agrememts and convections ?
A. The judiciary branch
B. The legislative branch
C. The executive branch
D. Courts
5.Who has the authority to ratify international laws ?
A. The judiciary branch
B. The legislative branch
C. The executive branch
D. The council of ministers
6. Who sign the bill that is passed into the law by House of people representative? (Assume sate ethos is parliamentary democracy)
A. The prime minster
B. The President
C. Court
D industry minister
7. Which one of the following is wrong about Kyoto protocol of Japan?
A. The developed Nations including USA signed this treaty to reduce green house emission.
B. The agreement is ratified and became a part of legal system of Ethiopia.
C. There was a developed country who refused to treaty.
D. The countries who signed this agreement are not only developed nations but also developed nation .
8. The deliberate transmission of diseases is considered as that is considered as murder of individual.
A. Homicide
B. Genocide
C. Terrorism
D. Drug trafficking
9. Actions like drug trafficking, corruption, terrorism and homicide are regulated by _.
A. Specific law
B. Domestic law
C. criminal law
D. Family law
10. Which one of the following is true about tax evasion ?
A. It is the tax of changing a business venture to one that pay less tax.
B. Its is preferable way done by smart businessman.
C. It is a legal offence .
D. It is unwillingness of the people to pay a tax
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β
PHYSICS GRADE 12 -UNIT -2
1.Chaltu has two pendula, one has a length of 1 meter, and the other one is longer. She
sets them both swinging at the same time. After the 1 meter pendulum has com-
pleted 12 oscillations, the longer one has only completed 11. How long is the longer
pendulum?
A. 1.2 m
B. 0.6 m
C. 12 m
D. 5 m
2.Consider a spring that is standing on end in the vertical position. You place 100
grams on the spring and it compresses a distance of 9.8 cm.What is the spring constant?
A. 10 N/m
B. 5 N/m
C. 0.1 N/m
D. Doesn't exist
3. What is the maximum value of displacement a simple harmonic motion of an amplitude 3 m ?
A. β(3) m
B. 3 m
C. 1.5 m
D. 18 m
4. If Masinko's sound is twice as intense as Kirar , Then what is the intensity level (decibels) increment of the Masinko ?(use log3=0.477 & log2 =0.301)
A. 3
B. 4.77
B. 1.5
B. 2.38
5.What period would you expect from a pendulum of length 0.5 m on the moon where g = 1.6 m/s2?
A. 3.51
B. 7
C. 2.6
D. 1.68
6.The traveling wave is given by y D = 0.22sin (5.6x - 34t) What is its velocity ?
A. 6 m/s
B. 11m/s
C. 0
D. 1.5
7. A French submarine and a U.S. submarine move toward each other during maneuvers in motionless water in the North Atlantic. The French sub moves at speed vF = 50.00 km/h, and the U.S. sub at vUS = 70.00 km/h. The French sub sends out a sonar signal (sound wave in water) at 1.00 Γ 10Β³ Hz. Sonar waves travel at 5470 km/h. (a) What is the signalβs frequency as detected by the U.S. sub?
A. 1022 Hz
B. 345 Hz
C.3670 Hz
D.778 Hz
8.A violinist places her finger so that the vibrating section of a 1.0 g/m string has a length of 30 cm, then she draws her bow across it. A listener nearby in a 20Β° C room hears a note with a wavelength of 40 cm. What is the tension in the string?
A. 260 N
B. 5155 N
C. 69 N
D. 520 N
9.The equation of a transverse wave on a string is
y = (2.0 mm) sin [(20 m-1)x β (600 s-1)t]
The tension in the string is 15 N. What is the linear density of the string in grams per meter.?
A. 1.67x 10-Β² kg/m
B. 8.65Γ10Β³ g/m
C. 167 g/m
D. 3.24 Γ10-3 kg/m
10. What is the increment of total energy of simple harmonic motion , if its amplitude is doubled ?
A. increase by four
B. Will be quadrupled
C. Increase by two
D. Will be quarter of prior
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Answer for sentence completion Questions
Part - 3
21. The storyβs bitter antagonist felt such great for all of the other characters that as a result, his life was very lonely and he died alone.
a. insurgence
b. malevolence
c. reciprocation
d. declamation
b. Malevolence (n.) means ill will or malice toward others; hate.
22. It is difficult to believe that charging 20% on an outstanding credit card balance isnβt !
a. bankruptcy
b. usury
c. novice
d. kleptomania
b. Usury (n.) is the lending of money at exorbitant interest rates.
23. The weather patterns of the tropical island meant tourists had to carry both umbrellas and sunglasses.
a. impertinent
b. supplicant
c. preeminent
d. kaleidoscopic
d. Kaleidoscopic (adj.) means continually changing or quickly
shifting.
24. Wedding ceremonies often include the exchange of rings to symbolize the coupleβs promises to each other.
a. hirsute
b. acrimonious
c. plaintive
d. Votive
d. Votive (adj.) means dedicated by a vow.
25. Kym was __ in choosing her friends, so her parties were attended by vastly different and sometimes bizarre personalities.
a. indispensable
b. indiscriminate
c. commensurate
d. propulsive
b. Indiscriminate (adj.) means not discriminating or choosing
randomly; haphazard; without distinction.
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Answer for sentence completion Questions
Part - 2
11. Prince Phillip had to choose: marry the woman he loved and his right to the throne, or marry Lady Fiona and inherit the crown.
a. reprimand
b. upbraid
c. abdicate
d. winnow
c. To abdicate (v.) means to formally relinquish or surrender power, office, or responsibility.
12. If you will not do your work of your own , I have no choice but to penalize you if it is not done on time.
a. predilection
b. coercion
c. excursion
d. volition
d. Volition (n.) means accord; an act or exercise of will.
13. After sitting in the sink for several days, the dirty, food-encrusted dishes became .
a. malodorous
b. prevalent
c. imposing
d. perforate
a. Malodorous (adj.) means having a foul-smelling odor.
14. Giulia soon discovered the source of the smell in the room: a week-old tuna sandwich that one of the children had hidden in the closet.
a. quaint
b. fastidious
c. clandestine
d. fetid
d. Fetid (adj.) means having a foul or offensive odor, putrid.
15. After making remarks to the President, the reporter was not invited to return to the White House pressroom.
a. hospitable
b. itinerant
c. irreverent
d. chivalrous
c. Irreverent (adj.) means lacking respect or seriousness; not reverent.
16. With her eyesight, Krystyna spotted a trio of deer on the hillside and she reduced the speed of her car.
a. inferior
b. keen
c. impressionable
d. ductile
b. Keen (adj.) means being extremely sensitive or responsive;having strength of perception.
17. With a(n) grin, the boy quickly slipped the candy into his pocket without his motherβs knowledge.
a. jaundiced
b. nefarious
c. stereotypical
d. sentimental
b. Nefarious (adj.) means wicked, vicious, or evil.
18. Her display of tears at work did not impress her new boss, who felt she should try to control her emotions.
a. maudlin
b. meritorious
c. precarious
d. plausible
a. Maudlin (adj.) means excessively and weakly sentimental or
tearfully emotional.
19. Johan argued, βIf you know about a crime but donβt report it, you are in that crime because you allowed it to happen.β
a. acquitted
b. steadfast
c. tenuous
d. complicit
d. Complicit (adj.) means participating in or associated with a questionable act or a crime.
20. The authorities, fearing a of their power, called for a military state in the hopes of restoring order.
a. subversion
b. premonition
c. predilection
d. infusion
a. Subversion (n.) means an overthrow, as from the foundation.
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Answer for sentence completion
Part - 1
1. She hadnβt eaten all day, and by the time she got home she was
.
a. blighted
b. confutative
c. ravenous
d. ostentatious
c. Ravenous (adj.) means extremely hungry.
2. The movie offended many of the parents of its younger viewers by
including unnecessary in the dialogue.
a. vulgarity
b. verbosity
c. vocalizations
d. garishness
a. Vulgarity (n.) means offensive speech or conduct.
3. His neighbors found his manner bossy and irritating, and they stopped inviting him to backyard barbeques.
a. insentient
b. magisterial
c. reparatory
d. restorative
b. Magisterial (adj.) means overbearing or offensively self-assured.
4. Steven is always about showing up for work because he feels that tardiness is a sign of irresponsibility.
a. legible
b. tolerable
c. punctual
d. literal
c. Punctual (adj.) means arriving exactly on time.
5. Candace would her little sister into an argument by teasing her and calling her names.
a. advocat
b. provoke
c. perforate
d. lamente
b. To provoke (v.) is to incite anger or resentment; to call forth a feeling or action.
6. The dress Ariel wore with small, glassy beads, creating a shimmering effect.
a. titillated
b. reiterated
c. scintillated
d. enthralled
c. To scintillate (v.) means to emit or send forth sparks or little flashes of light, creating a shimmering effect; to sparkle.
7. Being able to afford this luxury car will getting a better-paying job.
a. maximize
b. recombinant
c. reiterate
d. necessitate
d. To necessitate (v.) means to make necessary, especially as a result.
8. Levina unknowingly the thief by holding open the elevator doors and ensuring his escape.
a. coerced
b. proclaimed
c. abetted
d. sanctioned
c.To abet (v.) means to assist, encourage, urge, or aid, usually an act of wrongdoing.
9. Shakespeare, a(n) writer, entertained audiences by writing many tragic and comic plays.
a. numeric
b. obstinate
c. dutiful
d. prolific
d. Prolific (adj.) means abundantly creative.
10. I had the experience of sitting next to an over-talkative passenger on my flight home from Brussels.
a. satisfactory
b. commendable
c. galling
d. acceptable
c. Galling (adj.) means irritating, annoying, or exasperating.
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Part - 3
21. The storyβs bitter antagonist felt such great for all of the other characters that as a result, his life was very lonely and he died alone.
a. insurgence
b. malevolence
c. reciprocation
d. declamation
22. It is difficult to believe that charging 20% on an outstanding credit card balance isnβt !
a. bankruptcy
b. usury
c. novice
d. kleptomania
23. The weather patterns of the tropical island meant tourists had to carry both umbrellas and sunglasses.
a. impertinent
b. supplicant
c. preeminent
d. kaleidoscopic
24. Wedding ceremonies often include the exchange of rings to symbolize the coupleβs promises to each other.
a. hirsute
b. acrimonious
c. plaintive
d. Votive
25. Kym was __ in choosing her friends, so her parties were attended by vastly different and sometimes bizarre personalities.
a. indispensable
b. indiscriminate
c. commensurate
d. propulsive
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Part - 2
11. Prince Phillip had to choose: marry the woman he loved and his right to the throne, or marry Lady Fiona and inherit the crown.
a. reprimand
b. upbraid
c. abdicate
d. winnow
12. If you will not do your work of your own , I have no choice but to penalize you if it is not done on time.
a. predilection
b. coercion
c. excursion
d. volition
13. After sitting in the sink for several days, the dirty, food-encrusted dishes became .
a. malodorous
b. prevalent
c. imposing
d. perforated
14. Giulia soon discovered the source of the smell in the room: a week-old tuna sandwich that one of the children had hidden in the closet.
a. quaint
b. fastidious
c. clandestine
d. laconic
15. After making remarks to the President, the reporter was not invited to return to the White House pressroom.
a. hospitable
b. itinerant
c. enterprising
d. chivalrous
16. With her eyesight, Krystyna spotted a trio of deer on the hillside and she reduced the speed of her car.
a. inferior
b. keen
c. impressionable
d. ductile
17. With a(n) grin, the boy quickly slipped the candy into his pocket without his motherβs knowledge.
a. jaundiced
b. nefarious
c. stereotypical
d. sentimental
18. Her display of tears at work did not impress her new boss, who felt she should try to control her emotions.
a. maudlin
b. meritorious
c. precarious
d. plausible
19. Johan argued, βIf you know about a crime but donβt report it, you are in that crime because you allowed it to happen.β
a. acquitted
b. steadfast
c. tenuous
d. complicit
20. The authorities, fearing a of their power, called for a military state in the hopes of restoring order.
a. subversion
b. premonition
c. predilection
d. infusion
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Sentence completion
1. She hadnβt eaten all day, and by the time she got home she was
.
a. blighted
b. confutative
c. ravenous
d. ostentatious
2. The movie offended many of the parents of its younger viewers by
including unnecessary in the dialogue.
a. vulgarity
b. verbosity
c. vocalizations
d. garishness
3. His neighbors found his manner bossy and irritating, and they stopped inviting him to backyard barbeques.
a. insentient
b. magisterial
c. reparatory
d. restorative
4. Steven is always about showing up for work because he feels that tardiness is a sign of irresponsibility.
a. legible
b. tolerable
c. punctual
d. literal
5. Candace would her little sister into an argument by teasing her and calling her names.
a. advocat
b. provoke
c. perforate
d. lamente
6. The dress Ariel wore with small, glassy beads, creating a shimmering effect.
a. titillated
b. reiterated
c. scintillated
d. enthralled
7. Being able to afford this luxury car will getting a better-paying job.
a. maximize
b. recombinant
c. reiterate
d. necessitate
8. Levina unknowingly the thief by holding open the elevator doors and ensuring his escape.
a. coerced
b. proclaimed
c. abetted
d. sanctioned
9. Shakespeare, a(n) writer, entertained audiences by writing many tragic and comic plays.
a. numeric
b. obstinate
c. dutiful
d. prolific
10. I had the experience of sitting next to an over-talkative passenger on my flight home from Brussels.
a. satisfactory
b. commendable
c. galling
d. acceptable
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Answer for BIOLOGY GRADE-12 -Unit-2
βΊPart -3
21. Which of the following is wrong about ecosystem?
A.Freshwater habitats are independent of terrestrial habitats.
B.An ecosystem consists of biotic and abiotic factors.
C.Clearing a forest would reduce the amount of energy available to the consumers.
D. While an understanding of the interactions between organisms and their environment was very important to early hunter and gatherer humans, it is even more important today because humans are having significant effects on the environment.
Answer : a
Lake and ponds are components of terrestrial biomes.
22. βBiodiversityβ is described as:
A. The range of different species in an environment
B. The seasonal and daily changes in an environment
C. The way species differ from one another
D. The influence of physical factors on an environment
Answer: A
Biodiversity :The diversity (number and variety of species) of plant and animal life within a region
23. Rabbits are important grazers, maintaining some important grassland habitats.
If another catastrophe were to reduce rabbit populations what would happen?
A. Important grassland butterflies would be lost
B. There would be more grass for the surviving rabbits
C. The grassland would be invaded by trees and shrubs
D. All of the above
Answer : B
24._________ is a region were there is a high plant species richness, but don't have high mamal species richness .
A. Sina desert of Egypt
B. Fybos of South Africa
C. Afar region of Ethiopia
D. Green land
Answer : B
25. All of the following crops have thier center of genetic diversity in Ethiopia except
A. Ricinus communist
B. Linum usitatissimum
C. Herdeum spp
D. Cyprus rotundes
Answer : D
Ricinus communist -αα
Linum usitatissimum - α°αα£
Herdeum spp -αα₯α΅
Cyprus rotundes - αα€α( αα© α₯α α α°αα)
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Answer for BIOLOGY GRADE-12 -Unit-2
βΊPart -2
11. Which statement best describes the flow of energy and the movement of chemical compounds in an ecosystem?
A. Energy flows into living organisms and remains there, while chemical compounds are
transferred from organism to organism.
B. Chemical compounds flow in one direction in a food chain and energy is produced.
C. Energy is transferred from organism to organism in a food chain and chemical
compounds are recycled.
D. Energy flows out of living organisms and is lost, while chemical compounds remain
permanently inside organisms.
Answer : C
12. Some bloodsucking insects insert their mouthparts directly into a blood vessel and withdraw
blood. Other bloodsucking insects have mouthparts that cut through the skin and blood vessels
and produce a small pool of blood from which they feed. Both mouthpart types are specialized
for
A. autotrophic nutrition
B. heterotrophic nutrition
C. regulation
D. excretion
Answer : B
Heterotrophic nutrition is a nutrition which requires an external supply of energy in the form of food as it cannot be synthesized on its own.
13. Which change describes a demographic transition?
a. a population moves from a high birthrate and death rate to a high birthrate and low death rate.
b. a population moves from a high birthrate and low death rate to a low birthrate and death rate.
c. a population moves from a low birthrate and death rate to a low birthrate and high death rate.
d. a population moves from a high birthrate and death rate to a low birthrate and low death rate.
Answer : d
14.Which of the following does not affect the spatial distribution of a population?
a. the carrying capacity of a population
b. the distribution of food and other resources
c. abiotic conditions like rainfall and sunlight
d. the existence of predators or parasites
Answer : a
The carrying capacity of a population is the outcome of the limiting factor .
15. Young adult male chimpanzees look for mates outside their own population. The males then take the females back to their group. Which of the following occurs in females' original population?
a. emigration
b. immigration
c. mortality
d. natality
Answer : a
She was emigrated from her original population.
16. . Which event is correlated with the beginning of exponential growth in human population?
a. the start of the Industrial Revolution
b. the invention of agriculture
c. the bubonic plague epidemic
d. the end of the Second World War
Answer : a
The was rapid growth of human population due to start of industrial revolution of last few centuries.
17. If two species are competing for the same resources, one will be more successful and the other will be extinct.This priceple is called ____.
A. Inter specific competition principle
B. Intera specific competition principle
C. Competitive exclusion principle
D. Inclusive competition principle
Answer : C
18. Ecology is the study of the interaction of living organisms
a. with each other and their habitat.
b. and their communities.
c. with each other and their physical environment.
d. and the food they eat.
Answer : C
19.The physical location of an ecosystem in which a given species lives is called a
a. habitat.
b. tropical level.
c. niche.
d. biotic zone.
Answer : a
A specific place or natural conditions in which a plant or animal lives.
20. Which of the following would not be included in a description of an organism's niche?
a. its trophic level
b. its color
c. the humidity it prefers
d. when it reproduce
Answer : b
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Answer for BIOLOGY GRADE -12 -UNIT-2
βΊPart-1
1.Similarity of one biome to another may be due to
a. altitude.
b. latitude.
c. altitude and latitude, only.
d. altitude, latitude, and longitude.
Answer : C
Longitude : Any imaginary line perpendicular to the equator and part of a great circle passing through the North Pole and South Pole.
2.The only one of the following characteristics that all deserts have in common is
a. low rainfall amounts.
b. heat.
c. sand.
d. lack of vegetation.
Answer : a
Either it is cold or hot desert, there is almost none amount of rainfall.
3.A biome with grasses as primary producers and shrubs and scattered trees adapted to prolonged dry spells is known as a
a. warm desert.
b. savanna.
c. tundra.
d. taiga.
Answer : B
4.The biome with the greatest diversity of life is
a. temperature deciduous forest.
b. taiga.
c. tropical rain forest.
d. grassland.
Answer :C
Tropical rain forest has
β.many plants
β.many animals
β.epiphytes
5.Which biome is characterized by plants whose leaves drop off in the wintertime?
a. coniferous forest
b. tundra
c. Temperate deciduous forest
d. tropical rain forest
Answer :C
Deciduous : (botany) Of or pertaining to trees which lose their leaves in winter or the dry season.
6.Estuaries often exhibit a great degree of species diversity because
a. the water movement is more stable to allow species diversity exist.
b. many species of the open ocean spend a portion of their life cycles in estuarine waters.
c. there is a continued upwelling of nutrients.
d. saltwater and freshwater species are present, plus many species of invertebrates and fishes
that spend their early life stages here.
Answer : d
Estuarine :
β there is Extreme water movement (I.e less stable)
β diversified species due to intermediate salt content
7.Which factor would have the greatest effect on the flow of energy into an ecosystem?
A. a large decrease in the amount of sunlight available
B. a large increase in the number of carnivores
C. a small increase in the number of decomposers
D. a small decrease in the amount of minerals available
Answer : A
Just think the consequence of absence of sun light energy
8. Some of the energy taken in by an organism is not available to other organisms in a food
web. Energy that is not available to other organisms in a food web is energy that is
A. stored in the remains of a dead animal
B. lost to the environment as heat
C. stored in eggs produced during sexual reproduction
D. produced in muscle tissue during the growth of an organism
Answer : B
The lost heat energy can be in a form of kenetic energy, sound energy etc
9. A stable ecosystem would not contain
A. materials being cycled
B. consumers without producers
C. decomposers
D. a constant source of energy
Answer : B
The same concept with Q8
Energy doesn't be recycled .
10. Abiotic factors that characterize a forest ecosystem include
A. light and biodiversity
B. temperature and amount of available water
C. types of producers and decomposers
D. pH and number of heterotrophs
Answer : B
Rainfall (amount of precipitation) and temperature are main abiotic factor that affect forest ecosystem.
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πSHARE πSHARECivics - Unit - 3
1. _ is/are the principle equality which implies equal protection of citizen before law?
A. Universal suffrage
B. Legal equality
C. Burden and benefit
D. Equity
2. Which movement had significantly contributed to prevalence of gender Equality ?
A. Sexism
B. Feminism
C. EWLA
D. Masculism
3. What is the government mandate in taking action of promoting common good ?
A. Priority is given for individual interest.
B. The government authorize the rife of public interest and deliberately overlook over look individual interests .
C. There is a desire to promote common good more than individual interest.
D. Authorizing the impose of public interest is not mandate of a government.
4. Which one is incorrect about affirmative action?
A. It promote reverse discrimination.
B. It is policy of helping formally disadvantaged groups
C. It doesn't follow the principle of equality
D. It compensates the past discriminated group to be for dominant over discriminating group .
5.All of the following are the outcomes of the 1974 popular revolution,except?
A. Distribution of land among peasants
B. Campaign against illiteracy
C. The absence of multy party system
D. Introduction of National Shengo.
6. What was the motto of Ethiopian student movement?
A. Land to tiller
B. Edget Be Hbret
C. Stop Military Junta
D. No more hesitation for emperial rΓ©gime
7. Multi culturalism doctrine is important for Ethiopia because :
A. It let's a given society confiscate their culture.
B. It allows citizens to participate in multi party system
C. It makes citizens respect each other without jeopardize the social pieces and stability.
D. It creates an opportunity for the celebration of nation and nationalities day.
8. One of the following is not the factor for armed resistance of peasants over imperial regime, which one ?
A. They were suffered for mal- administration and corruption
B. They tholed for lack of social service
C. They were forced to pay heavy tax
D. They were forced to accept the ideology of Feminism.
9. The mains center of Gojam peasant rebellion were
A. Welqayt and Tagede
B. Mota and Dega Damot
C. Raya and Azabo
D. Bale and showa
10. Which imperial rebellion did take place after libration of Ethiopia from Italy occupation ?
A. 1st woyane movement
B. Gojam peasant rebellion
C.2nd woyane movement
D. Bale peasant movement
11._________ is the social study of humanity, mainly using culture as its method.
A. Anthropology
B. Culture relativism
C. Value
D. Norm
12. What is the behavior of ethnocentric people?
A. They understand culture in its own term.
B. They minimize mis understanding and conflicts related to cultural diversity
C. They are open minded for appreciation the culture of others.
D,none
13. Which one of the following is incorrect about the bale peasant rebellion.
A. Religious discrimination was the aggravating factor of it.
B. It was encouraged by Somalia propaganda.
C. It was the first rebellion to overthrow the battle
D. It center was Elkere .
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