Ethio exreme book

@ethioExtremeBook1

Channel's geo and language: Ethiopia, English

Category: Telegram

Channel's geo and language

Ethiopia, English

Ethio exreme book

20 Feb, 20:59

Who are You?

Male

Female

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1. Tola can choose tea, coffee, or milk with bread, cake, or sandwich. How many breakfast combinations does he have?
A) 3
B) 6
C) 9
D) 12

Answer: C) 9

2. How many 4-digit numbers can be formed from 1,3,5,7,8,9 (no repetition) if they must be even?
A) 60
B) 120
C) 240
D) 360

Answer: A) 60

3. If P(A) = 0.3 and P(B) = 0.5, and A and B are mutually exclusive, what is P(A or B)?
A) 0.8
B) 0.15
C) 0.2
D) 0.65

Answer A 0.8

4. How many ways can 5 people sit at a round table?
A) 120
B) 24
C) 60
D) 12

Answer: B) 24

https://t.me/ethioExtremeBook1
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Ethio exreme book

20 Feb, 17:10

ለ ተማሪዎች መልካም ዜና

ጥያቄዎችን የምታገኙበትን ምርጥ ቻናሎች ልጋብዛቹ ትወዳላቹ

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Ethio exreme book

20 Feb, 15:01

Forward from: Oro wollega library

✔️Family Garuu Maalidha Odeffanno Post Yoo Siniif Gonu React Kan Hin Gone!!

✔️Post Erga Gone Booda Odeffanon Post Gone Sin Fayyadu Fi Fayyaduu Dhabuu Isaa Reaction Kessanin Beekna Kanaaf Reaction Bayy'ee Barbachisaadha።
Mee Mana Reactionidhaan Ho'isaa👍🔥❤️

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Ethio exreme book

20 Feb, 13:48

የቱ Subject ይከብዳል?

♾ Math ♾

Physics

History

Economics

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Ethio exreme book

20 Feb, 13:11

Family quizy is loading react now. if you are active.

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Ethio exreme book

20 Feb, 11:38

Forward from: Oro wollega library

Basic Electricity

Instructions: Choose the best answer for each question.

1. What is electric current measured in?
a) Volts
b) Watts
c) Amperes
d) Ohms

2. Which of the following is a good conductor of electricity?
a) Rubber
b) Wood
c) Copper
d) Plastic

3. What is the unit of electrical resistance?
a) Ampere
b) Volt
c) Ohm
d) Watt

4. What does a battery do in a circuit?
a) Measures current
b) Provides voltage
c) Controls resistance
d) Stops the flow of charge

5. What is voltage often described as?
a) The flow of electric charge
b) The electrical pressure
c) The opposition to current
d) The rate of energy use

6. What is the function of a switch in a circuit?
a) To increase voltage
b) To decrease resistance
c) To open or close the circuit
d) To measure current

7. If you increase the voltage in a circuit, what happens to the current (assuming resistance stays the same)?
a) It increases
b) It decreases
c) It stays the same
d) It stops

8. Which of these materials is a good insulator?
a) Silver
b) Aluminum
c) Glass
d) Gold

9. What is electric power measured in?
a) Amperes
b) Volts
c) Ohms
d) Watts

10. What is the formula for Ohm's Law?
a) P = IV
b) V = IR
c) E = mc²
d) F = ma

11. According to Ohm's Law, if the resistance in a circuit increases, and the voltage stays the same, the current will:
a) Increase
b) Decrease
c) Stay the same
d) Stop completely

12. What is the purpose of a resistor in a circuit?
a) To provide voltage
b) To measure current
c) To limit current flow
d) To store energy

13. What type of circuit has only one path for the current to flow?
a) Parallel circuit
b) Series circuit
c) Short circuit
d) Open circuit

14. In a parallel circuit, what is the same for all components?
a) Current
b) Resistance
c) Voltage
d) Power

15. In a series circuit, what is the same for all components?
a) Current
b) Voltage
c) Resistance
d) Power

16. What happens to the total resistance when you add resistors in series?
a) It increases
b) It decreases
c) It stays the same
d) It becomes zero

17. What happens to the total resistance when you add resistors in parallel?
a) It increases
b) It decreases
c) It stays the same
d) It becomes infinite

18. What is the name for a continuous, unbroken path through which electricity can flow?
a) Insulator
b) Circuit
c) Resistor
d) Voltage

19. Which of these is a safety device designed to protect a circuit from too much current?
a) Resistor
b) Battery
c) Fuse
d) Switch

20. Which of these is used to store electrical energy?
a) Resistor
b) Capacitor
c) Inductor
d) Switch

Answer Key:

1. c
2. c
3. c
4. b
5. b
6. c
7. a
8. c
9. d
10. b
11. b
12. c
13. b
14. c
15. a
16. a
17. b
18. b
19. c
20. b

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Ethio exreme book

20 Feb, 08:08

Forward from: Oro wollega library

(MCQs) about genetics:

1. What is the basic unit of heredity?

   • A) Chromosome

   • B) Gene

   • C) DNA

   • D) RNA
   Answer: B) Gene

2. Which of the following structures carries genetic information?

   • A) Ribosome

   • B) Chromosome

   • C) Endoplasmic reticulum

   • D) Golgi apparatus
   Answer: B) Chromosome

3. What is the term for different forms of a gene?

   • A) Alleles

   • B) Genotypes

   • C) Phenotypes

   • D) Chromatids
   Answer: A) Alleles

4. In Mendelian genetics, what is the expected phenotypic ratio for a monohybrid cross?

   • A) 1:1

   • B) 3:1

   • C) 9:3:3:1

   • D) 1:2:1
   Answer: B) 3:1

5. What is the function of messenger RNA (mRNA)?

   • A) To replicate DNA

   • B) To transport amino acids

   • C) To carry genetic information from DNA to the ribosome

   • D) To form the structure of ribosomes
   Answer: C) To carry genetic information from DNA to the ribosome

6. Which of the following is a type of mutation?

   • A) Insertion

   • B) Deletion

   • C) Substitution

   • D) All of the above
   Answer: D) All of the above

7. What is the purpose of DNA replication?

   • A) To produce proteins

   • B) To create energy

   • C) To ensure that each new cell has a complete set of DNA

   • D) To repair damaged DNA
   Answer: C) To ensure that each new cell has a complete set of DNA

8. What does the term "homozygous" mean?

   • A) Having two different alleles for a trait

   • B) Having two identical alleles for a trait

   • C) Having multiple alleles for a trait

   • D) Having no alleles for a trait
   Answer: B) Having two identical alleles for a trait

9. Which of the following best describes a phenotype?

   • A) The genetic makeup of an organism

   • B) The physical appearance of an organism

   • C) The location of genes on a chromosome

   • D) The sequence of nucleotides in DNA
   Answer: B) The physical appearance of an organism

10. What is the role of tRNA in protein synthesis?

    • A) To carry genetic information from DNA to ribosomes

    • B) To bring amino acids to the ribosome for protein assembly

    • C) To form the structure of ribosomes

    • D) To replicate DNA
    Answer: B) To bring amino acids to the ribosome for protein assembly

11. Which process results in the formation of gametes?

    • A) Mitosis

    • B) Meiosis

    • C) Binary fission

    • D) Budding
    Answer: B) Meiosis

12. What is the expected genotypic ratio in a dihybrid cross?

    • A) 1:2:1

    • B) 3:1

    • C) 9:3:3:1

    • D) 1:1
    Answer: C) 9:3:3:1

13. Which of the following is an example of a sex-linked trait?

    • A) Eye color

    • B) Hemophilia

    • C) Blood type

    • D) Height
    Answer: B) Hemophilia

14. What is a karyotype?

    • A) The sequence of DNA in a gene

    • B) A visual representation of an individual's chromosomes

    • C) The total number of genes in an organism

    • D) The process of DNA replication
    Answer: B) A visual representation of an individual's chromosomes

15. Which scientist is known as the father of modern genetics?

    • A) Charles Darwin

    • B) Gregor Mendel

    • C) James Watson

    • D) Francis Crick
    Answer: B) Gregor Mendel

16. What type of inheritance pattern is shown when both alleles are expressed equally in the phenotype?

    • A) Complete dominance

    • B) Incomplete dominance

    • C) Codominance

    • D) Epistasis
    Answer: C) Codominance

17. What is epigenetics?

    • A) The study of genetic mutations

    • B) The study of heritable changes in gene expression without altering the DNA sequence

    • C) The study of evolution and natural selection

    • D) The study of RNA and its functions
    Answer: B) The study of heritable changes in gene expression without altering the DNA sequence

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Ethio exreme book

20 Feb, 08:08

Forward from: Oro wollega library

🎯Common vocabulary words and phrases used to express excitement, help for English & Aptitude exa

1. Thrilled - Extremely excited and pleased.

2. Ecstatic - Overwhelmingly happy or joyful.

3. Eager - Keen or enthusiastic about something that is going to happen.

4. Elated - Marked by a high-spirited feeling of joy or pride.

5. Exhilarated - Filled with lively energy or excitement.

6. Overjoyed - Extremely happy or delighted.

7. Amazed - Greatly surprised or impressed; filled with wonder.

8. Bubbling - Full of cheerful excitement; lively and animated.

9. Buzzing - Full of excitement or energy; often describes a lively atmosphere.

10. Fired up - Very excited or enthusiastic about something.

11. Stoked - Informal term meaning very excited or enthusiastic.

12. Jazzed - Informal term meaning excited or enthusiastic.

13. Charmed - Feeling delighted or pleased, often due to something unexpected.

14. Gleeful - Full of high-spirited joy; delighted.

15. Radiant - Expressing great happiness or joy; shining brightly with excitement.

16. Astonished - Very surprised or impressed; amazed.

17. Delighted - Feeling great pleasure or satisfaction.

18. Enthusiastic - Showing intense and eager enjoyment, interest, or approval.

19. Joyful - Feeling, expressing, or causing great pleasure and happiness.

20. Zealous - Having or showing zeal; passionate and enthusiastic.

21. Radiating - Emitting joy and happiness outwardly; showing excitement visibly.

22. Spellbound - Fascinated or captivated by something exciting or enchanting.

23. On cloud nine - Extremely happy; in a state of blissful joy.

24. In high spirits - Feeling cheerful and lively; in a good mood.

25. Over the moon - Extremely happy; delighted beyond measure.

26. Walking on air - Feeling very happy and carefree; euphoric.

27. Tremendous - Very great in amount, scale, or intensity; extraordinarily exciting.

28. Breathtaking - Amazing or awe-inspiring; capable of causing excitement due to beauty or drama.

29. Dazzling - Extremely impressive, beautiful, or skillful; causing excitement through brilliance.

30. Heartwarming - Emotionally uplifting; causing feelings of happiness and joy.

31. Enchanting - Delightfully charming or attractive; captivatingly exciting.

32. Fascinating - Extremely interesting or charming; capturing attention fully.

33. Sizzling - Exciting and full of energy; often used to describe thrilling situations.

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Ethio exreme book

19 Feb, 20:57

Who are You?

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Ethio exreme book

19 Feb, 17:18

ለ ተማሪዎች መልካም ዜና

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Ethio exreme book

19 Feb, 13:48

የቱ Subject ይከብዳል?

♾ Math ♾

Physics

History

Economics

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Ethio exreme book

19 Feb, 08:34

🔥🔥 Chemistry multiple choice questions and answers

1. What aspect of the modern view of atomic structure was proved by Rutherford's gold foil experiment?
(A) the existence of the nucleus
(B) the charge on an electron
(C) the charge on alpha particle
(D) the existence of electrons

Answer A

2. Which of the following particle was discovered by cathode ray experiment?
(A) neutron
(B) proton
(C) electron
(D) nucleus

Answer C

3. The maximum number of electrons that can be accommodated in a sublevel for which l = 3 is:
(A) 2
(B) 10
(C) 6
(D) 14

Answer D

4. The Heisenberg Principle states that____
(A) no two electrons in the same atom can have the same set of four quantum numbers.
(B) two atoms of the same element must have the same number of protons.
(C) it is impossible to determine accurately both the position and momentum of an electron simultaneously.
(D) electrons of atoms in their ground states enter energetically equivalent sets of orbitals singly before they pair up in any orbital of the set.

Answer C

5. The neutral atoms of all of the isotopes of the same element have
(A) different numbers of protons.
(B) equal numbers of neutrons.
(C) the same number of electrons.
(D) the same mass numbers.

Answer C

6. In the Lewis structure for the OF2 molecule, the number of lone pairs of electrons around the central oxygen atom is
(A) 0
(B) 1
(C) 2
(D) 3

Answer C

7. Which is classified as nonpolar covalent?
(A) the H-I bond in HI
(B) the H-S bond in H2S
(C) the P-Cl bond in PCl3
(D) the N-Cl bond in NCl3

Answer D

8. The valence electrons of representative elements are
(A) in s orbitals only.
(B) located in the outermost occupied major energy level.
(C) located closest to the nucleus.
(D) located in d orbitals.

Answer B

9. What is the total number of electrons in the correct Lewis dot formula of the sulfite ion(SO₃²⁻)?
(A) 8
(B) 24
(C) 26
(D) 30

Answer C

10. Which one of the compounds below is most likely to be ionic?
(a) GaAs
(b) CaCl2
(c) NO2
(d) CCl4

Answer B

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Ethio exreme book

19 Feb, 08:27

Forward from: Oro wollega library

COOMING SOON GRADE 9-12

👉 BOOKS AND TEACHER GUIDES
👉 EXTREME SERIES
👉 REFERENCE
👉 NOTE BOOK
👉 EUEE QUESTION
👉 QUIZ

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