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01 📘ENGLISH GENERAL WORKSHEET
🕹JOIN AND SHARE
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02 Ministeerichi Barnootaa Qormaata Kutaa12ffaa Bara Kana ‘Online’ Kennamu Ilaalchisee Ibsa Kenne
Ministeerri Barnootaa Qormaata biyyaalessaa kutaa 12ffaa ‘online’ niin bara kana kennamu ilaalchisee ibsa kenneera.
Qormaata kutaa 12ffaa kana yeroo jalqabaaf karaa bilisa dijitaalaan qoruuf hojii dijitaalessuu hedduun raawwatamaa jiraachuu beeksiseera.
Bu’uura kanaan kilaasteroota bakkeewwan qormaataa adda bahan fuula duratti liinkiiwwan qophaa’an tuquun shaakaluun danda’aman ibseera.
Hanga ammaattis barataan qormaata kana fudhatu ‘username’ fi ‘password’ kan hin arganne yoo jiraate, biiroowwan barnootaaf waan ergameef qindeessitoota manneen barnootaasaaniirraa argachuu akka danda’an Ministeerri barnootaa beeksiseera.
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" Ka'umsi kenyi Jajjabiinaa barattootaa ijjollee kenyati!"
POWER LEARNING CHANNEL
Yaadaa, Qeeqaa fi Eeru qabdan Karaa @SAMUELDW nuuf barreessaaa | 386 | 2 | Loading... |
03 MATHEMATICS GRADE 11 FROM UNIT 7 AND 8 WE HAVE AROUND 65 QUESTIONS WE ARE COMING UP PLEASE SHOW US YOUR REACTION AND WE WILL POST YOUR COMMENTS
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04 #Aaga_Dhaga'aa
Barattoota maraaf!
Miidiyaan @Abdii_Sabaa osoo qarshii tokkollee hin baasin karaa ittiin kaardii guuttachuu dandeessan isiniif qopheessee xumureera.
Miidiyichi kana xiyyeeffannoo itti kennuun kan hojjateef barattoonni baay'een sababa kaardii dhabuutiin bilbila bilbiluu, interneetii fayyadamuufi beekumsa argachuu qabanu dhabaa waan jiraniifi.
Maarree haalli mijataan kun barattoota irratti xiyyeeffatee kan hojjatame ta'us namni kamuu fayyadamuu danda'a.
Kana booda kaardii maalinan bitadha, liqii teelee irraa liqeeffadha jechuu hambisuu keenyaaf gammachuu guddaatu nutti dhaga'ama.
Pirojektii kana miidiyichi xumuree gulaalaa kan jiruufi yeroo gabaabaa booda qilleensarra kan oolchuu ta’uu yeroo ibsu gammachuu guddaatu itti dhaga’ama!
SABA GUDDAA WAAN TAANEEF MIIDIYAA GUDDAATU NUUF MALA
📡 MIIDIYAA @ABDII_SABAA 📡
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05 Namoonni hin jalqabne jalqabaa! guyyaan isaa July 1 tti dheerateera
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06 ለሁሉም የሀይል ትምህርት ቻናል ቤተሰቦች
እንደሚታወቀው ቻናላችን በኛ በኩል ትልቅ ለውጥ አሳይቷል በጣም እናመሰግናለን ግን ስራችን አይቆምም ስለዚህ ትብብራችሁን እንፈልጋለን ይህ ስራ ቀላል አይደለም አንድ ነገር ፖስት ስናደርግ ትዕግስት ይጠይቃል' t have any help reaction ስለዚህ የሰው ሃይል ያስፈልጋል ከአሁን ጀምሮ ምላሻችሁ ቢጨምር ስራችን ይጨምራል (🩸❤️🥳💥🥰👍🤔👆💋☺️) ወዘተ . ያለበለዚያ በሌሎች ቻናሎች ውስጥ አስተዳዳሪዎች ከሆኑ እባክዎን በ https://t.me/compowerl ያግኙን እና ጠቃሚ ምክሮች ካሎት አስተያየት ይስጡን
"አመጣጣችን የልጆቻችን ተማሪዎች ማበረታቻ ነው"!
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07 MAATIIWWAAN POWER LEARNING CHANNEL KAN TATAN HUNDAF
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" ka'umsi kenyi Jajjabiinaa barattootaa ijjollee kenyati"!
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08 Waan Kun Akka isin hin dabare Amma start gochun jalqaba yeroo nama invite gootanis coin keessan dabala deemaa
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09 Barattootaa kutaa 12ffaa Hundaaf
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13 Tapswap xummuramuf guyyaa #4 qoftu hafe carraa keessanitti gargaramaa tap tap gochuu keessan itti fufaa karaa link as gadii jirun
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14 ⭐️ 24 Biology and Chemistry questions with Answer
✅Biology
1. Which process is primarily responsible for the production of ATP in cells?
- A) Glycolysis
- B) Photosynthesis
- C) Cellular respiration
- D) Fermentation
- Answer: C)
2. Which of the following structures is found in plant cells but not in animal cells?
- A) Mitochondria
- B) Ribosomes
- C) Cell wall
- D) Nucleus
- Answer: C) Cell wall
3. What is the primary function of the ribosome?
- A) DNA replication
- B) Protein synthesis
- C) Lipid synthesis
- D) Energy production
- Answer: B) Protein synthesis
4. Which molecule carries genetic information from the nucleus to the cytoplasm?
- A) DNA
- B) mRNA
- C) tRNA
- D) rRNA
- Answer: B) mRNA
5. Which phase of mitosis is characterized by the alignment of chromosomes in the center of the cell?
- A) Prophase
- B) Metaphase
- C) Anaphase
- D) Telophase
- Answer: B) Metaphase
6. Which of the following is an example of a homozygous genotype?
- A) Aa
- B) BB
- C) AB
- D) Bb
- Answer: B) BB
7. Which hormone regulates the levels of glucose in the blood?
- A) Insulin
- B) Thyroxine
- C) Adrenaline
- D) Estrogen
- Answer: A) Insulin
8. Which of the following is not a component of the central nervous system?
- A) Brain
- B) Spinal cord
- C) Peripheral nerves
- D) All of the above are part of the central nervous system
- Answer: C) Peripheral nerves
9. Which kingdom includes multicellular, photosynthetic organisms?
- A) Fungi
- B) Animalia
- C) Plantae
- D) Protista
- Answer: C) Plantae
10. What is the basic unit of structure and function in living organisms?
- A) Organ
- B) Cell
- C) Tissue
- D) Organ system
- Answer: B) Cell
11. What is the primary function of chlorophyll in photosynthesis?
- A) Absorbing water
- B) Absorbing sunlight
- C) Producing oxygen
- D) Producing glucose
- Answer: B)
12. Which of the following best describes an ecosystem?
- A) A group of the same species living in a specific area
- B) A community of organisms and their physical environment interacting together
- C) The variety of life within a specific habitat
- D) A single organism and its role in the environment
- Answer: B)
13. What is the primary role of mitochondria in cells?
- A) Protein synthesis
- B) Photosynthesis
- C) ATP production
- D) DNA replication
- Answer: C) ATP production
14. Which type of macromolecule are enzymes?
- A) Carbohydrates
- B) Lipids
- C) Proteins
- D) Nucleic acids
- Answer: C) Proteins
✅Chemistry
1. What is the chemical formula for methane?
- A) CH4
- B) C2H6
- C) C3H8
- D) CH3OH
- Answer: A) CH4
2. Which of the following is the chemical symbol for iron?
- A) Fe
- B) I
- C) Ir
- D) In
- Answer: A) Fe
3. What is the formula for ammonium sulfate?
- A) (NH4)2SO4
- B) NH4SO4
- C) (NH3)2SO4
- D) NH4S2O4
- Answer: A) (NH4)2SO4
4. What is the formula for aluminum oxide?
- A) AlO
- B) Al2O3
- C) AlO3
- D) Al2O
- Answer: B) Al2O3
5. Which of the following represents the formula for acetic acid?
- A) CH3COOH
- B) C2H5OH
- C) HCOOH
- D) C2H4O2
- Answer: A) CH3COOH
6. What is the chemical formula for glucose?
- A) C6H12O6
- B) C12H22O11
- C) C5H10O5
- D) CH2O
- Answer: A) C6H12O6
7. Which compound has the formula NaHCO3?
- A) Sodium carbonate
- B) Sodium bicarbonate
- C) Sodium hydroxide
- D) Sodium sulfate
- Answer: B)
8. What is the chemical symbol for lead?
- A) Pd
- B) Pb
- C) Pt
- D) Li
- Answer: B) Pb
9 Which of the following is the correct formula for copper(II) sulfate?
- A) CuSO4
- B) Cu2SO4
- C) CuS
- D) CuSO3
- Answer: A) CuSO4
10.Which type of bond involves the sharing of electron pairs between atoms?
A) Ionic bond
B) Covalent bond
C) Metallic bond
D) Hydrogen bond
Answer: B)
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22 🧪 Chemistry ka Dose 💊
Gaseous State Laws:
1. BLT--> pronounced as BOLT, here B stands for Boyle's, L stands for Law and T stands for temperature, we know that temperature is constant in Boyles law.
2. CLP--> pronounced as CLIP, here C for Charles, L for Law and P for Pressure, we all know in Charles law pressure is constant.
3. GLV--> pronounced as GLIVE, G for gay's, L for Law and V for Volume. We all know that in Gay's law volume is constant.
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23 ✍️Notes on Environmental Chemistry:
🔹Components of Environment:
➖Atmosphere: This comprises a blanket of gaseous layer around earth.
➖Hydrosphere: This comprises about 96% of earth’s surface & includes all sources of water like oceans rivers lakes, glaciers, ground water etc.
➖Lithosphere: It refers to earth’s solid crust containing the outer mineral cover. It comprises soil, minerals, organic matter etc.
➖ Biosphere: It refers to the domain of living organism in covalent with atmosphere hydrosphere as well as lithosphere.
🔹Environmental Pollution :
Process of contamination of the environment with harmful wastes arising mainly from human activities.
➖Pollutant: Any substance or species produced either by a natural source or by human activity, which produces adverse effect on the environment.
➖Contaminant: A substance which does not occurs in nature but is introduced by human activity into the atmosphere affecting its composition.
➖Source: The site from which the pollution or contaminants originate.
➖Sink: The material or medium which consumes or interacts with a long lived pollutant is called sink.
➖Receptor : Anything that is affected by the pollutants.
➖Threshold limit value (TLV) : This indicates the permissible limit of a pollutant in atmosphere to which a healthy worker is exposed during hours a day or 40 hours a week for life time without any adverse effects. TLV are determined by experimentation on animals, by use of medical knowledge, epidemiology surveys & environmental studies.
🔹Tropospheric pollution or Air pollution:
It is the atmosphere condition in which the presence of certain concentration produce harmful effects on man and his environment. These substances include:
(i) Gases such as oxides of sulphur, CO, oxide of N2 and hydrocarbons
(ii) Particulate matter such as dust, smoke, fumes etc.
(iii) Radioactive material & many others.
➖Primary pollutants : These are the pollutants which are emitted directly from the sources. Some examples are:
➖Particulate Matter : Such as ash, smoke, dust, fumes etc.
➖Inorganic gases : Such as sulphur dioxide, carbon monoxide etc.
🔹Particulate matter:
➖Soot: produced by incomplete combustion of carbonaceous fossils fuels such as coal, fuel oil, natural gas, wood etc in insufficient supply of oxygen.
➖Metal particles: These are released by various metal finishing operation. The micro particles of toxic metal & SO2 gas present in the polluted atmosphere get absorbed on the particles rendering them highly toxic.
➖Metal oxides : They are generated by combustion of fuels containing metallic compounds.
➖Lead salts: Their source is lead tetraethyl (Pb(C2H5)4) which is added to gasoline to improve its antiknock property. In order to avoid deposition of PbO suitable amounts of C2H4Cl2 & C2H4Br2 are added to gasoline along with Pb(C2H5)4.
➖Fly ash: It originates from the combustion of high ash fossil. It contains partially burnt particles of the fuels.
➖Asbestos dust: It originates from industrial units manufacturing asbestos sheets, gaskets ropes etc. Asbestos flowing & asbestos insulations also contribute towards asbestos dust in the atmosphere.
➖Solid Hydrocarbons: These are emitted from petroleum refineries & comprise of paraffins, olefins & aromatics.
➖Dust Particulates: Originate from natural, domestic, industrial or agricultural sources. These are thrown into atmosphere by volcanic eruptions, blowing of dust by wind, mining operations etc.
➖Acid mist : Sulphuric acid mist is produced when SO3 present in the atmosphere comes in contact with moisture. Nitric acid mist is produced when oxides of nitrogen, viz, NO & NO2, undergo the series of reactions in the atmosphere. | 767 | 9 | Loading... |
24 Some Important Points :
🌟BORON :
•In casting of copper as a dioxidizer
•Boron rods used in automic reactor.
•Boron fiber used in bullet proof jacket,
•In composite material of aircraft
•Used in braintumer therapy.
🌟 BORAX :
•As a flux for soldring metal.
•In borex bead test
•In softning of water
•Antiseptic
•Manufacturing of enamels of glazes, tiles.
•For making optical and borosilicals SS.
•Food preservative
🌟ALUMINIUM :
• Making house hold, untensils, frames, roof,aircrafts.
• Electric wire.
•Thermite process (In metallurgy of Cr, Mn, Fe)
•For transportin nitric acid.
•AI, Hg used as reducing agent.
•Aluminium powder + Ammonium nitrate.
⚡LEAD [Pb] :
•In making telegraph and telephone wires
•Making bullets
•Making chamber in HSO, process.
⚡️NITROGEN :
•In the manufacturing of HNO3, NH3, CaCN2.
•Liquid nitrogen used as refrigrant.
•Inert atmosphere in metallurgy.
•Gas thermometer and electrical bulb
⚡️NH3 :
• Refrigeration
•Manufacturing HNO3, NaHCO3
•Artificial Silk.
• Urea Formation
•For solvent
⚡️HNO3 :
• Manufacturing of ammonium nitrateas fertilizer.
•In explosive
• For making nitroglycerine.
• Making TNT.
• Pickling against of stainless steel.
• Etching of Metal
•Oxidizer in rocket fule.
━━━━━━━━━━━━━━━━━━━━━ | 2 904 | 22 | Loading... |
25 🌀Sodium➡️
➖Sodium is a soft, silvery color, and highly reactive alkali metal.
➖In the periodic table, Sodium is kept in group 1, as it has single electron in its outer shell.
➖The symbol of sodium is ‘Na,’ which has been actually taken from Latin word ‘natrium.’
➖In terms of abundance, sodium is the sixth element found in the Earth's crust.
➖Sodium exists in various minerals including feldspars, sodalite, and rock salt (NaCl).
➖In 1807, Humphry Davy first isolated sodium by the electrolysis of sodium hydroxide.
➖By the time, 20 isotopes of sodium are known, but among all, only 23Na is stable.
✅Salient Features of Sodium
➖Sodium metal a soft element that be can be easily cut with a knife.
➖Sodium is a good conductor of heat and electricity.
➖Because of having low atomic mass and large atomic radius, sodium is one of the least dense elements (third least dense element – first two are lithium and potassium).
➖Sodium can float on water.
➖Sodium along its compounds glow yellow (see image below).
➖Sodium compounds have very high commercial importance and have high demand in the industries of glass, paper, soap, and textiles.
✅Occurrence of Sodium
➖The crust of Earth contains about 2.27% sodium.
➖Sodium is the 5th most abundant metal; other four are aluminum, iron, calcium, and magnesium.
➖In the oceanic water, about 1.08 × 104 milligrams sodium found in per liter.
➖Sodium does not found as a pure element, as it is highly reactive.
✅Uses of Sodium
➖Sodium chloride is highly useful for anti-icing and de-icing as well as a preservative.
➖In cooking, sodium bicarbonate is used.
➖Sodium and some of its compounds are used in medicines.
➖In comparison to potassium (which is a better ion), sodium is more frequently used because of its lower price and atomic weight.
➖In organic chemistry, sodium hydride is used as various reactions.
➖Metallic sodium is principally used for the production of sodium borohydride, sodium triphenylphosphine, azide, indigo, etc.
➖In some fast reactors, liquid sodium is used as a heat transfer fluid because of having the property of good heat conductivity.
➖Sodium is also an essential mineral for the human health, as it regulates blood pressure, blood volume, osmotic equilibrium, and pH value.
➖The minimum amount of 500 milligrams sodium is required every day for a healthy human body.
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26 ✅Notes on s-Block Elements:
Physical Properties of Alkali Metals:
➖These are soft in nature and can be cut with the help of knife except the lithium.
➖The atoms of alkali metals have the largest size in their respective periods.
➖The first ionization energy of the alkali metals are the lowest as compared to the elements in the other group.
➖The alkali metals show +1 oxidation state.
➖The alkali metals have low values of reduction potential (as shown in table-I) and therefore have a strong tendency to lose electrons and act as good reducing agents.
➖The melting and boiling points of alkali metals are very low because the intermetallic bonds in them are quite weak.
Hydroxides of Alkali Metals:
a)All the alkali metals, their oxides, peroxides and superoxides readily dissolve in water to produce corresponding hydroxides which are strong alkalies.
➖2Na + 2H2O → 2NaOH + H2
➖Na2O + 2H2O 2NaOH
➖Na2O2 + 2H2O → 2NaOH + H2O2
➖2KO2 + 2H2O → 2KOH + H2O2 + O2
b) The basic strength of these hydroxides increases as we move down the group Li to Cs.
c) All these hydroxides are highly soluble in water and thermally stable except lithium hydroxide.
d) Alkali metals hydroxides being strongly basic react with all acids forming salts.
➖NaOH + HCI → NacI + H2O
➖2NaOH + H2 SO4 → Na2SO4 + 2H2O
Halides of Alkali metals:
➖M2O + 2HX → 2MX + H2O
➖MOH + HX → MX + H2O
➖M2CO3 + 2HX → 2MX + CO2 + H2O (M = Li, Na, K, Rb or Cs)
(X = F, Cl, Br or I)
➖ll the alkali metals form ionic (electrovalent) compounds.
➖The alkali metals are good conductors of heat and electricity.
➖Alkali metals (except Li) exhibit photoelectric effect
➖The alkali metals and their salts impart a characteristic colour to flame. | 837 | 12 | Loading... |
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ለ12ኛ ክፍል ተማሪዎች በሙሉ
❤ እንኳን ላ ዋዜማ ዳራሳቹ !!🇪🇹
🙏 ላ ሞዴል ፈተና ዋዜማ እንኳን ኣዳራሳቹ ይህን መልእክት ስኣስታላልፉ የመምህር እና የተማሪ ስሜት ብቻ ሳይሆን የአባት እና ልጅ ስሜት እንዲሁም ጠንካራ ወንድማማችነት ስሜት ይሰማኛል፤ የተሳካ ፈተና እንዲሆንላችሁ እመኛለሁ። ለሀገር አቀፍ ፈተና ጠንክረቹ እንድትዘጋጅም መልእክቴነ ስኣስታላልፏሏ።
👍 5🥰 2❤ 1😁 1🙏 1
Hamster Kombat warri hin eegallee eegala gatii guddaa baasa jedhamee eeggama
https://t.me/hamster_komBat_bot/start?startapp=kentId6489194656
DM me how to collect daily 5 million coins
Hamster Kombat
Just for you, we have developed an unrealistically cool application in the clicker genre, and no hamster was harmed! Perform simple tasks that take very little time and get the opportunity to earn money!
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