Ethio Quizzes

📚 Biology most common questions on Biology, its branches, and subfields:

1. Which of the following is not a branch of biology?
   a) Zoology
   b) Botany
   c) Physics
   d) Microbiology

2. The study of the Earth's living organisms and their interactions with the environment is known as:
   a) Ecology
   b) Genetics
   c) Immunology
   d) Physiology

3. Which branch of biology focuses on the study of cells?
   a) Microbiology
   b) Botany
   c) Entomology
   d) Mycology

4. The study of the structure and function of genes is known as:
   a) Genetics
   b) Paleontology
   c) Embryology
   d) Virology

5. Which of the following is a subfield of biology that involves the study of insects?
   a) Entomology
   b) Ornithology
   c) Herpetology
   d) Ichthyology

6. The branch of biology that deals with the study of plant life is called:
   a) Botany
   b) Zoology
   c) Mycology
   d) Paleontology

7. The study of the classification, evolution, and distribution of organisms is known as:
   a) Taxonomy
   b) Biotechnology
   c) Biochemistry
   d) Pharmacology

8. Which branch of biology focuses on the study of the immune system?
   a) Immunology
   b) Biochemistry
   c) Endocrinology
   d) Epidemiology

9. The study of the structure and function of the nervous system is known as:
   a) Neurology
   b) Embryology
   c) Histology
   d) Physiology

10. Which branch of biology deals with the study of fish?
    a) Ichthyology
    b) Herpetology
    c) Virology
    d) Anthropology

11. The branch of biology that involves the study of the development of embryos is called:
    a) Embryology
    b) Microbiology
    c) Pathology
    d) Anatomy

12. The study of the interaction between genes and the environment is known as:
    a) Epigenetics
    b) Paleontology
    c) Biophysics
    d) Biogeography

13. Which branch of biology focuses on the study of the human body and its functions?
    a) Anatomy
    b) Botany
    c) Genetics
    d) Virology

14. The study of the structure, function, and evolution of proteins is known as:
    a) Proteomics
    b) Paleontology
    c) Biochemistry
    d) Biotechnology

15. Which branch of biology deals with the study of birds?
    a) Ornithology
    b) Entomology
    c) Herpetology
    d) Mycology

16. The study of the interactions between organisms and their environment is known as:
    a) Ecology
    b) Evolutionary biology
    c) Microbiology
    d) Paleontology

17. Which branch of biology focuses on the study of viruses?
    a) Virology
    b) Immunology
    c) Biochemistry
    d) Pharmacology

18. The study of the structure and function of tissues is known as:
    a) Histology
    b) Physiology
    c) Entomology
    d) Pathology

19. Which branch of biology deals with the study of reptiles and amphibians?
    a) Herpetology
    b) Ichthyology
    c) Ornithology
    d) Mammalogy

20. The branch of biology that involves the study of the origin and history of life on Earth is called:
    a) Paleontology
    b) Biotechnology
    c) Microbiology
    d) Epidemiology

Answers:
1. c) Physics
2. a) Ecology
3. a) Microbiology
4. a) Genetics
5. a) Entomology
6. a) Botany
7. a) Taxonomy
8. a) Immunology
9. a) Neurology
10. a) Ichthyology
11. a) Embryology
12. a) Epigenetics
13. a) Anatomy
14. c) Biochemistry
15. a) Ornithology
16. a) Ecology
17. a) Virology
18. a) Histology
19. a) Herpetology
20. a) Paleontology

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📚 SAT (Scholastic aptitude test) English part multiple choice questions and answers

I. Choose the Synonym of the given words

1.PERILOUS
A) dangerous
B) careful
C) slippery
D) favourable

Answer A

2.EQUIVOCAL
A) clear
B) equal
C) brand
D) ambiguous

Answer D

3) BENEVOLENT
A) cruel
B) selfish
C) generous
D) happy

Answer C

4. COSMIC
A) universal
B) estranged
C) ambiguous
D) authoritative

Answer A

5. AVARICIOUS
A) humble
B) greedy
C) irritable
D) intelligent

Answer B

II) Analogy

6. FOOT : SKATEBOARD
A) tire : automobile
B) lace : shoe
C) ounce : scale 
D) pedal : bicycle

Answer D

7. HAT : HEAD
A) cold : hot
B) winter : snow 
C) glove : hand
D) basic : advanced

Answer C

8. PHOBIC : FEARFUL
A) finicky : thoughtful
B) cautious : emotional
C) envious : desiring 
D) ridiculous : silly

Answer D

9. TEACHER : SCHOOL
A) actor : role
B) judge : courthouse
C) mechanic : engine
D) jockey : horse 

Answer B

10. PHARMACY : DRUGS
A) mall : store
B) doctor : medicine
C) bakery : bread
D) bell : church

Answer C

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📌 Cell Parts/Function Practice Test

1. Which cell feature is responsible for making proteins?
A: lysosomes
B: ribosomes
C: mitochondria

2. What is the name of the jelly-like substance that is inside the cell?
A: cytoplasm
B: ectoplasm
C: cytokinesis

3. What cell feature is responsible for powering the cell?
A: endoplasmic reticulum
B: golgi bodies
C: mitochondria

4. Where in the cell does chromatin (DNA) found?
A: ribosomes
B: nucleus
C: nucleolus

5. What are two features that plant cells have that animal cells do not?
A: lysosome and cell walls
B: cell wall and chloroplasts
C: cell membrane and nucleolus

6. What cell feature contains digestive enzymes which breaks things down?
A: lysosomes
B: ribosomes
C: vacuoles

7. Which cell feature packages and moves things around the cell?
A: endoplasmic reticulum
B: chloroplasts
C: golgi bodies

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📌 Biology questions topics in biology and technology :


1. Which of the following is the basic unit of life?
   A) Atom 
   B) Molecule 
   C) Cell 
   D) Tissue 

2. What is CRISPR primarily used for in biotechnology?
   A) Protein synthesis 
   B) Gene editing 
   C) Cell division 
   D) DNA replication 

3. Which organelle is known as the powerhouse of the cell?
   A) Nucleus 
   B) Ribosome 
   C) Mitochondria 
   D) Golgi apparatus 

4. What type of bond holds the two strands of a DNA double helix together?
   A) Ionic bond 
   B) Hydrogen bond 
   C) Covalent bond 
   D) Metallic bond 

5. Which of the following technologies is used for sequencing DNA?
   A) PCR (Polymerase Chain Reaction) 
   B) Gel electrophoresis 
   C) Sanger sequencing 
   D) All of the above 

6. What is the primary function of ribosomes in a cell?
   A) Energy production 
   B) Protein synthesis 
   C) DNA replication 
   D) Lipid storage 

7. In genetic engineering, what does the term "transgenic" refer to?
   A) An organism with modified RNA 
   B) An organism that has been modified to contain genes from another species 
   C) An organism that has undergone mutation 
   D) An organism that is bred for specific traits 

8. Which of the following is a common application of biotechnology in agriculture?
   A) Antibiotic production 
   B) Genetic modification of crops for pest resistance 
   C) Fermentation processes for food production 
   D) All of the above 

9. What is the role of polymerase in PCR (Polymerase Chain Reaction)?
   A) To separate DNA strands 
   B) To synthesize new DNA strands 
   C) To amplify RNA strands 
   D) To degrade DNA strands 

10. Which of the following best describes bioinformatics?
    A) The study of living organisms in their natural environment 
    B) The application of computer technology to manage biological data 
    C) The process of creating synthetic organisms 
    D) The use of biological techniques in industrial processes 

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📌 SOCIAL  STUDENT

📖 Challenging  questions focused on climate geography, suitable for an EGSECE exam format;


1. Which of the following climates is characterized by very low precipitation and extreme temperature variations between day and night?

   • A) Tropical Rainforest

   • B) Desert

   • C) Mediterranean

   • D) Tundra

2. What is the primary driver of ocean currents that influence global climate patterns?

   • A) Wind patterns

   • B) Salinity differences

   • C) Earth's rotation

   • D) Solar radiation

3. Which climate zone is characterized by permanent ice and tundra vegetation?

   • A) Polar Climate

   • B) Humid Continental

   • C) Subtropical

   • D) Marine West Coast

4. The Köppen climate classification system divides climates into how many main categories?

   • A) 4

   • B) 5

   • C) 6

   • D) 7

5. Which of the following factors does NOT significantly influence a region's climate?

   • A) Latitude

   • B) Altitude

   • C) Population density

   • D) Proximity to water bodies

6. What type of climate is typically found in the Mediterranean region, characterized by hot, dry summers and mild, wet winters?

   • A) Csa

   • B) BSh

   • C) Dfb

   • D) Af

7. Which phenomenon refers to the periodic warming of ocean surface temperatures in the central and eastern Pacific Ocean, affecting global weather patterns?

   • A) La Niña

   • B) El Niño

   • C) Monsoon

   • D) Typhoon

8. What is the term for the gradual increase in Earth's average surface temperature due to human activities, primarily fossil fuel combustion?

   • A) Climate Adaptation

   • B) Global Warming

   • C) Urban Heat Island Effect

   • D) Ozone Depletion

9. Which region is most likely to experience a monsoon climate?

   • A) Northern Europe

   • B) Southeast Asia

   • C) Arctic Circle

   • D) Central Australia

10. The concept of "climate feedback loops" is best described as:

    • A) Changes in climate due to human intervention

    • B) Processes that amplify or dampen climate change effects

    • C) Weather patterns that repeat annually

    • D) Seasonal variations in temperature


Answers are in the comment

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📌 Questions on microscope

1. What part of the microscope is responsible for magnifying the image of the specimen?
a) Eyepiece
b) Objective lens
c) Condenser
d) Stage

2. Which part of the microscope is used to adjust the focus of the image?
a) Revolving nosepiece
b) Coarse adjustment knob
c) Fine adjustment knob
d) Arm

3. What part of the microscope supports the slide holding the specimen?
a) Diaphragm
b) Stage
c) Base
d) Eyepiece

4. Which component of the microscope is responsible for controlling the amount of light passing through the specimen?
a) Diaphragm
b) Objective lens
c) Condenser
d) Arm

5. What is the purpose of the revolving nosepiece on a microscope?
a) To hold the eyepiece
b) To adjust the magnification
c) To hold the objective lenses
d) To focus the image

6. Which part of the microscope connects the head to the base and provides support?
a) Stage
b) Arm
c) Condenser
d) Coarse adjustment knob

7. What part of the microscope moves the stage up and down for focusing?
a) Diaphragm
b) Revolving nosepiece
c) Coarse adjustment knob
d) Fine adjustment knob

8. Where is the light source typically located in a compound microscope?
a) In the eyepiece
b) Under the stage
c) Attached to the objective lens
d) In the revolving nosepiece

9. Which part of the microscope holds the slide in place on the stage?
a) Condenser
b) Stage clips
c) Base
d) Eyepiece

10. What is the function of the condenser in a microscope?
a) To adjust the focus
b) To control the amount of light
c) To hold the objective lenses
d) To support the slide

11. What type of microscope is commonly used for observing live biological specimens?
   a) Light microscope
   b) Electron microscope
   c) Scanning probe microscope

12. What is the primary function of the objective lens in a microscope?
   a) To adjust the focus
   b) To magnify the specimen
   c) To provide illumination

13. Which microscopy technique involves labeling molecules with fluorescent dyes?
   a) Fluorescence microscopy
   b) Electron microscopy
   c) Phase-contrast microscopy

14. What is the maximum magnification achievable with a typical light microscope?
   a) 1000x
   b) 2000x
   c) 5000x

15. Which component of an electron microscope focuses the electron beam onto the specimen?
   a) Condenser
   b) Objective lens
   c) Electron gun

16. In which microscopy technique are electrons passed through a thin specimen to produce an image?
   a) Transmission electron microscopy
   b) Scanning electron microscopy
   c) Atomic force microscopy

17. Which microscopy technique is best for visualizing surface topography?
   a) Scanning electron microscopy
   b) Phase-contrast microscopy
   c) Confocal microscopy

18. What is a key advantage of scanning probe microscopy?
   a) High magnification
   b) Real-time imaging
   c) Three-dimensional imaging

19. Which microscopy technique is used to investigate atomic structures?
   a) Electron microscopy
   b) Scanning probe microscopy
   c) X-ray microscopy

20. Which microscopy technique relies on electron beam interaction with sample atoms?
    a) Scanning electron microscopy
    b) Transmission electron microscopy
    c) Confocal microscopy

Comment your Answers

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📚 Physics ስለ rotational motion  ማትሪክ ላይ ሊመጡ የሚችሉ 10 ጥያቄዎች ከነመልሶቻቸው ።

1. What is the basic concept behind rotational dynamics in physics?
   A) Conservation of angular momentum
   B) Conservation of linear momentum
   C) Conservation of energy
   D) Conservation of time

Answer: A) Conservation of angular momentum

2. Which of the following measurements is used to quantify rotational motion?
   A) Mass
   B) Velocity
   C) Angular velocity
   D) Acceleration

Answer: C) Angular velocity

3. Which statement is correct about torque?
   A) Torque is a vector quantity
   B) Torque is a scalar quantity
   C) Torque is always equal to zero
   D) Torque is inversely proportional to angular acceleration

Answer: A) Torque is a vector quantity

4. What is the moment of inertia?
   A) A measure of an object's resistance to linear motion
   B) A measure of an object's resistance to angular motion
   C) A measure of an object's speed in circular motion
   D) A measure of an object's temperature

Answer: B) A measure of an object's resistance to angular motion

5. Which of the following factors affect an object's moment of inertia?
   A) Shape and mass distribution
   B) Velocity and acceleration
   C) Pressure and density
   D) Color and texture

Answer: A) Shape and mass distribution

6. The rotational analog of Newton's second law is given by:
   A) F = m × a
   B) F = m × g
   C) F = m × r
   D) τ = I × α

Answer: D) τ = I × α

7. What is centripetal force?
   A) The force that causes an object's circular motion
   B) The force that keeps an object at rest
   C) The force that causes rotational motion
   D) The force that opposes motion

Answer: A) The force that causes an object's circular motion

8. Which of the following best describes angular momentum?
   A) The force applied to rotate an object
   B) The product of moment of inertia and angular velocity
   C) The tendency of an object to maintain its rotational motion
   D) The force that causes linear motion

Answer: B) The product of moment of inertia and angular velocity

9. Conservation of angular momentum implies:
   A) Total angular momentum can change over time
   B) Angular momentum is conserved only in linear motion
   C) Angular momentum is conserved in rotational motion
   D) Angular momentum is not a conserved quantity

Answer: C) Angular momentum is conserved in rotational motion

10. What is the relationship between torque and angular acceleration?
   A) They are directly proportional
   B) They are inversely proportional
   C) They have no relationship
   D) Torque does not affect angular acceleration

Answer: A) They are directly proportional

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📌 ለሶሻል ተማሪዎች ማትሪክ ላይ ሊመጡ የሚችሉ 10 የጂኦግራፊ ጥያቄዎች

1. Which of the following climates is characterized by very low precipitation and extreme temperature variations between day and night?

   • A) Tropical Rainforest

   • B) Desert

   • C) Mediterranean

   • D) Tundra

2. What is the primary driver of ocean currents that influence global climate patterns?

   • A) Wind patterns

   • B) Salinity differences

   • C) Earth's rotation

   • D) Solar radiation

3. Which climate zone is characterized by permanent ice and tundra vegetation?

   • A) Polar Climate

   • B) Humid Continental

   • C) Subtropical

   • D) Marine West Coast

4. The Köppen climate classification system divides climates into how many main categories?

   • A) 4

   • B) 5

   • C) 6

   • D) 7

5. Which of the following factors does NOT significantly influence a region's climate?

   • A) Latitude

   • B) Altitude

   • C) Population density

   • D) Proximity to water bodies

6. What type of climate is typically found in the Mediterranean region, characterized by hot, dry summers and mild, wet winters?

   • A) Csa

   • B) BSh

   • C) Dfb

   • D) Af

7. Which phenomenon refers to the periodic warming of ocean surface temperatures in the central and eastern Pacific Ocean, affecting global weather patterns?

   • A) La Niña

   • B) El Niño

   • C) Monsoon

   • D) Typhoon

8. What is the term for the gradual increase in Earth's average surface temperature due to human activities, primarily fossil fuel combustion?

   • A) Climate Adaptation

   • B) Global Warming

   • C) Urban Heat Island Effect

   • D) Ozone Depletion

9. Which region is most likely to experience a monsoon climate?

   • A) Northern Europe

   • B) Southeast Asia

   • C) Arctic Circle

   • D) Central Australia

10. The concept of "climate feedback loops" is best described as:

    • A) Changes in climate due to human intervention

    • B) Processes that amplify or dampen climate change effects

    • C) Weather patterns that repeat annually

    • D) Seasonal variations in temperature


Answers

1. B) Desert - Deserts are characterized by very low precipitation and extreme temperature variations between day and night.

2. A) Wind patterns - Wind patterns are the primary driver of ocean currents that influence global climate patterns.

3. A) Polar Climate - The polar climate zone is characterized by permanent ice and tundra vegetation.

4. B) 5 - The Köppen climate classification system divides climates into 5 main categories.

5. C) Population density - Population density does NOT significantly influence a region's climate compared to latitude, altitude, and proximity to water bodies.

6. A) Csa - The Mediterranean climate is typically classified as Csa, characterized by hot, dry summers and mild, wet winters.

7. B) El Niño - El Niño refers to the periodic warming of ocean surface temperatures in the central and eastern Pacific Ocean, affecting global weather patterns.

8. B) Global Warming - The term for the gradual increase in Earth's average surface temperature due to human activities, primarily fossil fuel combustion, is global warming.

9. B) Southeast Asia - Southeast Asia is most likely to experience a monsoon climate.

10. B) Processes that amplify or dampen climate change effects - Climate feedback loops refer to processes that amplify or dampen the effects of climate change.

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📚 EUEE 2008 Aptitude

1. If n = 9 x 28 x 26, which of the following is NOT an integer?

A. n/18    B. n/32   C. n/21   D. n/36
Answer B

2. The sum of the first nine natural numbers (1, 2,.....,9) is

A. 90     B. 55   C. 45     D. 100
Answer  c

3. If a + b = 10 and a - b = 5, then a2- b2 is equal to

A. 50     B. 1/2   C. 5    D. 2
Answer A

4. In which of the following pair of number is the first number or expression necessarily less than the second number or expression?

A. 3/7 ; 9/49

B. x/4 ; 14/x , for x > 0

C. (2/3)^2 ; 2 /(3^2)

D. [(3/7)(24/25)]:1
Answer D

5. Which of the following fractions is greater than 3/4: and less than 5/6?

A. 1/2     B. 4/5   C. 2/3    D. 9/10
Answer B

6.  (100 x 5^4) = ?

A. 62500      B. 76600  C. 67000     D. 77200
Answer A

7. What decimal of an hour is a second?

A. 0.0167    B. 0.000126   C. 0.0256    D. 0.00027
Answer    D

8. What least number should be added to 1056, so that the sum is completely divisible by 23?
A. 18    B. 2     C. 3    D. 21

Answer  B

9. The largest 4 digit number exactly divisible by 88 is:

A. 9768   B. 9988   C. 9944   D. 8888
Answer  C

10. The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:

A. 9600  B.9000  C. 9400  D. 9800
Answer  A

11. What is the missing number in the following series? 
1, 9, 25, 49, ()

A. 54   B. 56   C. 81   D. 64
Answer  C

12. Which of the following is the largest fraction?

A. 7/8  B. 3/4  C. 4/5   D. 7/9
Answer A

13. All of the following are ways to write 20 percent of N, except

A. 0.20 N     B. 20 N  C. 1/5 N    D. 20/100 N

Answer B

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