This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
3 A periscope is used for a) observing the spectrumb) to see things above our headsc) seeing the magnified images of near objects D) None of these |
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| 2. |
Suggest 2 ways to reduce the consumption of water at your home. |
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| 3. |
Is any other vehicle except train engine more powerful then tractor 850 |
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Answer» Answer: 7 Production cars with LUDICROUSLY high power to weight ratios #Blogpost
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| 4. |
3. As grade 7 student, why is it important to know the formation of the solar system? |
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| 5. |
When a paper working of food item become greasy and transparent this means the food contents |
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Answer» An OILY patch on PAPER shows that the food has fats. Sometimes, the food items may contain a LITTLE water. Therefore, after you have RUBBED an item on paper, let the paper DRY for a while. If there was any water in the food, it would show up on the paper and dry up after some time. |
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| 6. |
What is the function of tracheal type present in insects |
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Answer» Answer: In insects, the tracheal TUBES primarily deliver oxygen DIRECTLY into the insects' TISSUES. The spiracles can be opened and closed in an efficient manner to reduce water loss. This is DONE by contracting closer muscles surrounding the spiracle. ☺️⚡ |
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| 7. |
1. Write true or falsesurrounding of air water and animals called habitat |
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| 8. |
Please reply the answer |
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Answer» Just EVEN I can't UNDERSTAND. Explanation: Just Even I can't understand. |
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| 9. |
Electric motor diagram sub-questions construction of which equipment does the above diagram shows |
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Answer» i didn't KNOW this answer |
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| 10. |
Briefly describes human eye and essential part of human eye |
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Answer» The human eye is an organ that reacts to light in many circumstances. As a conscious sense organ the human eye allows vision; rod and cone cells in the retina allow conscious light perception and vision, including color differentiation and the perception of DEPTH. The human eye can distinguish about 10 million colors. The front part (what you see in the MIRROR) includes: IRIS: the colored part. Cornea: a clear dome over the iris. Pupil: the black circular opening in the iris that lets light in. Sclera: the white of your eye. Conjunctiva: a thin LAYER of tissue that covers the entire front of your eye, except for the cornea. |
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| 11. |
Curd are acidic / alkaline in nature |
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Answer» acidic in NATURE .. Explanation: hope you will like my answer |
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| 12. |
5 How much more sugar can be dissolved if the 250g of water is heatedto 80°C? |
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Answer» 150.... |
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| 13. |
प्रकाश की चाल अधिकतम होती है निर्मल में जल में वायु में हीरे में |
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Answer» किसी भी माध्यम में प्रकाश की गति उस माध्यम के अपवर्तन के सूचकांक के व्युत्क्रमानुपाती होती है। N = C / V v = c / n हवा का अपवर्तनांक (= 1) हीरे के अपवर्तक सूचकांक (= 2.42) से कम है। इसलिए गैस में प्रकाश की गति हीरे में अधिकतम और न्यूनतम होगी। |
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| 14. |
Which is the active greenhouse chemical species?1- H2O vapors2- CO3- N24- O2 |
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Answer» Answer: Greenhouse gases that occur both naturally and from HUMAN activities INCLUDE water vapor, carbon DIOXIDE (CO2), METHANE (CH4), nitrous OXIDE (N2O) and ozone (O3). |
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| 15. |
How many particles present in 2 mol oxygen |
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Answer» Answer: One MOLE of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) ATOMS, because each MOLECULE of oxygen contains two oxygen atoms. |
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| 16. |
Complete the follwing chemical reactions 1)_______+_________----->CO2+2H2O+Heat 2) 2NaOH+CO2----> ______+______ |
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Answer» 1) CH2+O2 |
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| 17. |
How are ocean tides formed? Explain |
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Answer» Gravity is one major force that creates TIDES. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the SUN and MOON on the oceans of the earth (Sumich, J.L., 1996). ... TIDAL forces are based on the gravitational attractive force. Explanation: No VaLeNtiNe'S day Only black day HoPe It HeLp'S UhH ☺ ☹SaD BlAcK DaY FoR InDiA ('° ---- °') ☹ ¹⁴ FÈB ²⁰¹⁹ PLS FLW ME PLS ☹PLS THANKS =THANKS ☺ ✌ITZ AbUsiNg QuEeN✌ |
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| 18. |
Write any five properties of true solutions? |
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Answer» Explanation: QUESTIONWrite any five properties of true solutions?ANSWER
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| 19. |
rek-ftib-tzp (why reproduction is important in animal and how we find velancy of electron find atom of gf |
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Answer» Answer: Animal reproduction is necessary for the survival of a species. ... ASEXUAL reproduction PRODUCES genetically identical organisms (clones), whereas in SEXUAL reproduction, the genetic material of two individuals combines to produce offspring that are genetically different from their parents. You can get the VALENCE electrons in an atom's electronic arrangement by consulting the periodic table:
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| 20. |
The milk turns into curds due to _____ which are added to the milk |
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Answer» Answer: bactaria in ATMOSPHERE tere are to much bactaria that's why MILK TURN into CURD |
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| 21. |
Plz change ur bio it is not giving any kick browhat is atmosphere? |
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| 22. |
Pottasium hydroxides an example of |
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Answer» Explanation: KOH is an example of a strong base which means that it dissociates in aqueous solution into its ions. Although the pH of KOH or potassium hydroxide is EXTREMELY high (typical solutions typically range from 10 to 13), the exact VALUE DEPENDS on the concentration of this strong base in water. |
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| 23. |
If earth is round like a ball so how aeroplanes fly around it |
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Answer» because the EARTH moves Explanation: |
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| 24. |
The blades of a fun and the wheels of a bicycle are fixed at a point |
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Answer» Answer: SIMPLE MACHINE, any of several devices with few or no moving parts that are used to MODIFY motion and the magnitude of a force in order to perform work. ... They are the simplest mechanisms known that can use LEVERAGE (or MECHANICAL advantage) to increase force. |
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| 25. |
Has a maximum amount of solute dissoved in solvent |
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Answer» Answer: Saturated solution contains the MAXIMUM AMOUNT of dissolved solute for a given amount of solvent at a specific pressure and temperature. In a saturated solution, SOLVATION and crystallization are in equilibrium (They are HAPPENING at equal RATES at the same time). |
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| 26. |
Explain how the water cycle occurs in nature. |
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The water CYCLE on Earth Water is essential to life on Earth. ... Liquid water evaporates into water VAPOR, condenses to form clouds, and precipitates back to earth in the form of rain and SNOW. Water in different phases MOVES through the atmosphere (transportation). |
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| 27. |
Burette SolutionSolution in the Conica lesk. Noce* End Pom: Colour of the solution in the conical flask - faint pink to colourless5 Pilot Reading for completion of reaction. ml to ml6. Chemical Reactions |
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Answer» BLUE red green because of the primary colour are these and the reaction of the ATTRACTION are the |
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| 28. |
यदि लाल गुलाब को पीले प्रकाश में देखा जाए तो उसका रंग क्या होगा |
Answer» ANSWER: |
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| 29. |
An element X has electronic configuration 2, 8, 3. What will be the formula of its oxide? Also mention the nature of the oxide |
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Answer» Answer: formula of oxide : Al2O3 nature of oxide : AMPHOTERIC |
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| 30. |
How was Asteroid belt formed? according to grade 8th. |
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Answer» Answer: The asteroid BELT FORMED from the PRIMORDIAL solar nebula as a group of planetesimals. Planetesimals are the smaller PRECURSORS of the protoplanets. Between Mars and Jupiter, however, gravitational perturbations from Jupiter imbued the protoplanets with too much orbital energy for them to accrete into a planet. Explanation: ✨ |
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| 31. |
2. Use your brain power!What would happen if no kites (birds) are left in a particular region? which living things would increase in number?Which would decrease ? |
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Answer» Answer:
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| 32. |
Is chemical change is always irreversible |
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Answer» Answer: YES , all CHEMICAL CHANGES are irreversible.... Mark as brainliest , give THANKS n follow |
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| 33. |
3. What is dispersion of white light? What is the cause of such dispersion? Draw adiagram to show the dispersion of white light by a glass prism? we |
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Answer» ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooookkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk |
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| 34. |
2.Two bar magnets, P and Q are kept as shown in the following diagram.daP Repel Q(a) If Point & represents the south pole of the magnet Q, which pointrepresents the north pole of magnet P?(b) What will happen when the end & of magnet 'Qis brought towards theend b' of magnet 'P? |
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Answer» Answer: The term magnetism comes from the region of Magnesia, a city in Western Turkey, where Greeks found lodestones, which attracted iron pieces across the space. It is also observed that, MAGNETS attract as well as repel. We can explain this dual nature of magnetic force by PROPOSING that each magnet has two poles, north pole (N) and south pole (S). You will observe two things during the activities: 1) When two magnets are brought near each other, like poles repel; opposite poles attract. 2) When a magnet is brought near a piece of iron, the iron also gets attracted to the magnet, and it acquires the same ability to attract other pieces of iron.
We like to represent this force effect of a magnet on iron-like objects with a concept called magnetic field. The concept of field can be best understood if we remember the gravitational force of Earth on object near it. We say that the mere presence of Earth sets up gravitational field in the surrounding space, and that we can represent this gravitational force effect with lines starting from Earth and radially diverging away to infinity. Moon is caught in Earth’s field. Likewise, the Astronaut in space walk is feeling the Earth’s GRAVITY. Space shuttle is also in the Earth’s field. The reason why they don’t fall is BEYOND the scope of this course, but I will explain for completeness. None of them fall towards Earth because they all have enough horizontal speed to make around the Earth. If you were able to horizontally throw a baseball at 18,000 mi/h, I would also make around the Earth and return to you. Therefore, we represent the Earth’s attractive gravitational force with field lines. The direction of field lines represent the direction of force a body would experience around Earth, and the density of field lines (how closely they are separated) represents the strength of the force. For example, closer you are to the Earth, stronger the force. Similarly, a magnet sets up a magnetic field in its surrounding space in which it MAGNETICALLY affects any other magnetic material. The strength is represented by the density of the magnetic field lines. Magnetic field lines are closed curves leaving from North pole and entering the South pole when you follow them on the outside the magnet. A compass, which is a small magnet itself, lines up parallel to the magnetic field lines at the point it is placed. The tip of the arrow is the North magnetic pole, and its end is the South magnetic pole. The building blocks of magnets are atoms, which are small tiny magnets. As far as the magnetism is concerned, we can view an atom as if it is a tiny compass/magnet, pointing to the north direction. We will see later that, the motion of electrons (moving electric charge) is the fundamental reason of magnetism. For practical purposes we can focus on a cluster of atoms, called magnetic domains that are aligned in a specific direction. Each domain may consist of billions of aligned atoms. Under normal conditions, a magnetic material like iron doesn’t behave like a magnet because the domains don’t have a preferred direction of alignment. On the other hand, the domains of a magnet (or a magnetized iron) are all aligned in s specific direction. Domains are separated from the adjacent domains by domain walls. In general, alignment within a domain is the same for all atoms of that domain. However, the atoms of one domain are aligned in a different direction than the atoms of another domain. This situation is sketched below for a magnetic material, a magnetized material, and for a nonmagnetic material. A nonmagnetic material doesn’t have any domain structure. |
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| 35. |
Explain the structure and function of thermos flask, with the help of neat labelled diagram |
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Answer» A thermos FLASK MAINTAINS the temperature of the substance kept in it, that is, it keeps a hot substance hot and COLD substance cold for long a long time. The outer casing of a thermos flask is made up of plastic or metal. Plastic, being a poor conductor of heat, acts as an insulator preventing the heat loss through conduction. Inside it, is a double-walled container made of glass or stainless steel. Both the walls are polished so they are shiny. The space between the TWO walls is a vacuum; this prevent prevents heat loss through convection since there are no air particles to carry out the transfer of heat. the shiny SURFACE of the walls also prevents heat loss through radiation.
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| 36. |
Cell division is not only for generating copy of DNA. why?(3 marks) |
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Answer» During every cell division, a cell must duplicate its CHROMOSOMAL DNA through a PROCESS called DNA replication. The duplicated DNA is then segregated into two "daughter" cells that inherit the same genetic information. ... Healthy cells can perform DNA replication with ALMOST absolute ACCURACY most of the time. |
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| 37. |
XXV. ਹੇਠ ਲਾਂਘਆਂ ਵਿੱਚੋਂ ਕਿਹੜਾ ਜੈਵ ਅਵਿਘਟਨਸ਼ੀਲ ਪਦਾਰਥ ਹੈ ?A.} ਲੱਕੜ B,} ਫੁੱਲ C.} ਫਲਾਂ ਦੇ ਛਿਲਝ D.ਪਲਾਸਟਿਕ |
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Answer» EXPLANATION:D.ਪਲਾਸਟਿਕ |
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| 38. |
Comparison of the duck parent and their young..and their reproductive |
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Answer» Answer: by John Coluccy, Ph.D.by John Coluccy, Ph.D.Those of us who are parents have mixed memories of changing diapers and being awakened in the MIDDLE of the night by a screaming baby. But imagine yourself trying to look after four, eight or even a dozen babies all at once, and in a predator-filled environment. This is exactly the situation adult waterfowl face every year. As you can imagine, brood CARE among waterfowl is a daunting yet critical task.by John Coluccy, Ph.D.Those of us who are parents have mixed memories of changing diapers and being awakened in the middle of the night by a screaming baby. But imagine yourself trying to look after four, eight or even a dozen babies all at once, and in a predator-filled environment. This is exactly the situation adult waterfowl face every year. As you can imagine, brood care among waterfowl is a daunting yet critical task.Adult waterfowl provide their young with many types of care, and the investment in this care varies by species and even individuals. When they hatch, for example, most waterfowl are unable to thermoregulate (keep warm by automatically regulating their body temperature) for several days and periodically require a parent (the hen, in most duck species; both parents in the case of geese and swans) to cover them with their body and wings to help maintain normal body temperature. This behavior, known as brooding, also protects young waterfowl from extreme precipitation (including rain, hail and snow), sunlight, wind and from predators.by John Coluccy, Ph.D.Those of us who are parents have mixed memories of changing diapers and being awakened in the middle of the night by a screaming baby. But imagine yourself trying to look after four, eight or even a dozen babies all at once, and in a predator-filled environment. This is exactly the situation adult waterfowl face every year. As you can imagine, brood care among waterfowl is a daunting yet critical task.Adult waterfowl provide their young with many types of care, and the investment in this care varies by species and even individuals. When they hatch, for example, most waterfowl are unable to thermoregulate (keep warm by automatically regulating their body temperature) for several days and periodically require a parent (the hen, in most duck species; both parents in the case of geese and swans) to cover them with their body and wings to help maintain normal body temperature. This behavior, known as brooding, also protects young waterfowl from extreme precipitation (including rain, hail and snow), sunlight, wind and from predators.Another critical form of care is protection from predators. Most waterfowl utter alarm calls at the first sign of approaching danger. Alarm calls will either cause young birds to scatter, MOVE closer to their parent(s), or freeze in place. FEMALES of many duck species will also feign injury by acting like their wing is broken to draw predators away from their broods. Adult geese may ACTUALLY attack intruders (including humans) who come too close to their offspring.#hope this helps you.....:) |
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| 39. |
Kayla is examining different soil samples and making notes about how well each sample sticks together. She has two soils that she has classified as dry, ones as wet and one as cemented. Which soil property is she examining?densitytexturestructureconsistency |
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Answer» Answer: Simple machine, any of several DEVICES with few or no moving parts that are used to modify motion and the MAGNITUDE of a force in order to perform work. ... They are the simplest mechanisms KNOWN that can use leverage (or MECHANICAL advantage) to increase force. |
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| 40. |
I don't know!!When I am sad, all the lines are formed on their own... |
Answer» HEY.. FRIEND..❤️Good EVENING..❤️ |
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| 42. |
Characteristics of paramecium in points |
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Answer» Answer: Paramecium has a worldwide distribution and is a free-living organism. It usually lives in the stagnant water of POOLS, LAKES, ditches, ponds, freshwater and slow flowing water that is rich in decaying ORGANIC matter. Its OUTER body is COVERED by the tiny hair-like structures called cilia. |
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| 43. |
During this pandemic, a group of children collected a lump of salt, green grass,broken glass, X-ray film, thermocol box, Jute bag, iron nail, glass marbles andtried to group them on the basis of properties given in table below, Help them infilling the tableName of Appearance TransparencyFloatsSoluble/insolubletheHard/Soft Transparent/Translu sinks in in watermaterialcent/opaquewater |
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Answer» Soluble Hard opaque HOPE IT HELPS YOU PLZ MARK ME AS BRIANLIEST PLZ |
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| 44. |
Why do we classify organisms |
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Answer» Answer: Why do we classify ORGANISMS? Ans: By CLASSIFYING organisms, it is easier and more convenient to study their characteristics. SIMILARITIES exhibited by VARIOUS ENTITIES allow us to categorize different entities into a class and hence, study the group as a whole. |
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| 45. |
What are the do's and don'ts to remember while planning meals for older adults ? |
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Answer» Do not overcook the FOOD to make it SOFT as by doing so one destroys vital NUTRIENTS. Instead, select foods which need less time to cook. - Also, exercise regularly, stretch and do yoga to ensure absorption of nutrients well. ☺️☺️ |
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| 46. |
1.In a closed circuit, the direction of flow of electric current is(a) from negative to positive terminal(b) from positive to negative terminal(c) in both the above directions(d) None of the above2. The part of electric current wasted while flowing through a circuit is(a) sound energy(b) chemical energy(c) heat energy(d) nuclear energy3.Which of these appliances in your house is not run by electricity?(a) computer(b) Gas burner(c) Music system(d) Air conditioner4. Which of these will generate electric current, when kept in sunlight but not when kept in the dark?(a) Dry cell(b) Car battery(c) Solar cell(d) Button cell5. Which of the following controls the closing and opening of a circuit?(a) Bulb(b) Cell(c) Switch(d) None of these6. The filament of an electric bulb is made up of this metal.(a) iron(b) Tungsten(c) Copper(d) All of these7. The glass case of an electric bulb is filled with this gas.(a)Oxygen(b) Argon(c) Nitrogen(d) none of these8. Which of the following is an insulator?(a) Brass oppon(b) Silver jewellery(c) Steel spoon(d) Plastic jug10. Which of the following is a conductor of electricity?(a) pure water(b) Pencil lead(c) Air(d) None of these |
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Answer» 1 in both the above direction 2heat energy 3gas burner 4solar cell 5switch 6tungsten 7argon 8plastic jug 9none of these |
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| 47. |
Why are roughage and water important for us? |
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| 48. |
What is photosynthesis? Mai pehchan gya tha. ;D |
Answer» Photosynthesis is a PROCESS used by PLANTS and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the ORGANISM's metabolic activities.#ItzBrainlySwagBoy |
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| 49. |
Salaam Mumbai Foundation Match the following |
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Answer» Answer: A stopwatch is a HANDHELD timepiece designed to measure the amount of TIME that elapses between its ACTIVATION and deactivation. A large DIGITAL version of a stopwatch designed for viewing at a distance, as in a sports STADIUM, is called a stop clock |
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| 50. |
Draw the picture of any two things that make air dirty. write one sentence about each. |
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Answer» INDUSTRIAL CHIMNEY and SMOKE from VEHICLE |
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