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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 43251. |
methods to prevent rusting of iron |
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Answer» Painting galvanisation oiling alloying By painting on iron articles Electrolysis, Glavanisation |
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| 43252. |
Mechanism of reflex action? |
| Answer» In man and other vertebrate animals, there are two types of actions viz. voluntary and involuntary actions. The actions carried out and regulated by brain are voluntary actions. The actions carried out without direct concern of brain are involuntary actions. The involuntary actions are conducted by spinal cord and are known as reflex actions.Reflex arc: For a reflex action, the path taken by a stimulus from some reception to one or more effectors is known as reflex arc. Once the sensory organ is excited by some stimuli, the message is carried by the sensory nerves to the spinal cord. From the spinal cord the directions carried by the motor nerve fibres to one or more effector organs. The whole action is completed instantaneously. Some of the examples of reflex actions are blinking of eyes, sneezing, coughing in response to foreign particle that has entered in eye, nose, the throat respectively. | |
| 43253. |
What is the difference between in stimulus and response? |
| Answer» \tStimulus events are aperiodic and asynchronous. Stimulus is an or condition that initiates a response\tA response is the reaction to a specific stimulus. The Response may be physical or cellular, or it may be behavioural\tThe main difference between stimulus and response is that a stimulus is an event or condition which initiates a response whereas response is the organism’s reaction to a stimulus.\tIn humans, ears, eyes, nose, tongue, and skin are the main sensory organs which capture external stimuli such as hearing, vision, smell, taste, touch or heat, respectively.\tboth help to maintain homeostasis or a constant internal environment in animals. | |
| 43254. |
how does transportation in plant? explain briefly. |
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Answer» And then further give the detailed explanstion of xylem and phloem tissuei.e. its functions....... It takes place with the help of 1)xylem-transportation of water2)phloem -transportation of food and nutrients. |
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| 43255. |
What is the uses of lactic acid? |
| Answer» which then use the nutrients to produce lactic acid | |
| 43256. |
How to short paragrahp by twinkling star |
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| 43257. |
Whatvis indicator |
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Answer» Indicator is the substance which help to know about the substance is acid or base there are three types of indicator 1. Litmus paper 2. Meathyl orange The substance which indicate the presence of acid or base |
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| 43258. |
What is the science behind the DRS system in cricket? |
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| 43259. |
Name the element required for biological nitrogen fixation. |
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Answer» Hello bhahiya? Iron, Molybdenum as well as Phosphorous play important role in BNF. Nitrogen fixation is carried out naturally in the soil by a wide range of microorganisms termed diazotrophs that include bacteria such as Azotobacter, and archaea. Some nitrogen-fixing bacteria have symbiotic relationships with some plant groups, especially legumes.[2] Looser non-symbiotic relationships between diazotrophs and plants are often referred to as associative, as seen in nitrogen fixation on rice roots. Nitrogen fixation also occurs between some termites and fungi.[3] It also occurs naturally in the air by means of NOx production by lightning.[4][5]All biological nitrogen fixation is effected by enzymes called nitrogenases.[6] These enzymes contain iron, often with a second metal, usually molybdenum but sometimes vanadium. Okay..mujhe mil gaya? Ni.. Anyone know the answer?? |
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| 43260. |
Meaning of nutrition |
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Answer» The process of taking in food is known as the nutrition Hlow ayushi \xa0The process of taking in food and utilising it is called\xa0nutrition. Modes of nutrition Autotrophic NutritionThe mode of nutrition in which an organism makes its own food is called autotrophic nutrition. Heterotrophic Nutrition\xa0The mode of nutrition in which an organism cannot make it own food and depends on other organisms for food is called heterotrophic nutrition\xa0 |
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| 43261. |
Define amiter |
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Answer» A device that is used to measure electric current Ammeter is a device used to measure current in the circuit. The device which is used to measure the electric current is called ammeter The device used to measure electric current in a circuit is called ammeter |
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| 43262. |
Life process sslc notes |
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| 43263. |
Ammonium hydroxide ka colour kaisa hai??? |
| Answer» It is colourless | |
| 43264. |
Name the blood vessel that bring oxygenated blood to human heart |
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Answer» Haemoglobin Pulmonary vein arteries |
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| 43265. |
Why are the voltmeter connected in parallel combination? |
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Answer» So aese lgaya jata hai Voltmeter has very high resistance |
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| 43266. |
Why are the ammeter connected in series combination ? |
| Answer» Iska resistance bahut hi low hai | |
| 43267. |
Who discovered cells how and when ? |
| Answer» The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name. However what Hooke actually saw was the dead cell walls of plant cells (cork) as it appeared under the microscope.History of Cell Biology - Bitesize | |
| 43268. |
Ammonia and hydrogen chloride gases are mixed which type of reaction takes place |
| Answer» When it comes to ammonia, it is a base because ammonia includes an extensive pair of electron atoms on nitrogen atom that is donated to the acid which is hydrogen chloride.If you mix Ammonia as well as Hydrogen chloride, you will get ammonium chloride. It is given by NH3 (g) + HCl (g) → NH4Cl(s). | |
| 43269. |
Ray diagram of all the 8 cases of mirror and explain properly |
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Answer» Image Formation in Lenses Using Ray Diagrams\xa0 |
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| 43270. |
Where does ADP generate in our body? |
| Answer» ADP Adinosine Dia Phosphate is another form of ATP as ATP has 3bonds in which energy is stored and at the time when cell needs energy ATP goes to the place where this energy is needed and breaks it\'s one bond to release energy and this ATP with 2bonds of energy is called ADP. Hence ADP is an ATP Only with 2bonds of energy | |
| 43271. |
What are the function of the platelets |
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Answer» It helps in clotting of blood When blood vessels are cut or damaged, the loss of blood from the system must be stopped before shock and possible death occur. This is accomplished by solidification of the blood, called as coagulation or clotting. The smallest cells in the blood are platelets which are designed for this particular purpose.As soon as an artery or vein is injured, the platelets in the injured area begin to clump together and stick to the edges of the cut. They also release messengers into the blood which perform a variety of functions like constricting the blood vessels to reduce bleeding, attracting more platelets to the area to enlarge the platelet plug and initiating the activation of plasma based on clotting factors such as fibrinogen.The plasma protein fibrinogen is transformed into long, sticky thread of fibrin. Blood clotting takes place when the platelets, RBC and WBC are trapped in these fibres. It helps in blood clotting at the time of injury |
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| 43272. |
Is nuclear energy is non renewable resource how ? |
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Answer» Yes because once you used a nucleus than you can\'t use it again if nucleus is destroyed. Ok No as the source of energy suppiled is uranium and thorium which are not freely and abundantly available in nature for which nuclear energy is not renewable |
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| 43273. |
what are steps of nutrition |
| Answer» IngestionDigestionAssimilationAbsorptionEgestion | |
| 43274. |
What is relation between nutrition and respiration |
| Answer» Without digestion process respiration process can\'t be completed.as in Respiration break down of food particles take place to liberate energy | |
| 43275. |
List two steps of energy transmission take place in a thermal power plant |
| Answer» Potential energy of coal or energy source to Heat energy.2 Potential energy of turbine to mechanical or kinetic energy and then into electric energy | |
| 43276. |
Na2o + h2o |
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Answer» Na2O+H2O=NaOHNa2O+H2O=2NaOH Mera bhi hello kaise ho dosto Hlo Hi |
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| 43277. |
Example12. 2 |
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Answer» Pura problem hhh jaa boka Vaise tum nyi ho kya yha Sabhi solutions mil jayenge yrr |
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| 43278. |
What is the difference between potential difference and resistivity |
| Answer» Resistivity:\xa0The electrical resistivity is the electrical resistance per unit length and per unit of cross-sectional area at a specified temperature. The SI unit of electrical resistivity is the ohm⋅metre (Ω⋅m). It is commonly represented by the Greek letter ρ, rhoPotential Difference:\xa0The difference between the potential of positive and negative ions of current is called P.D | |
| 43279. |
A defnition of evolution of gas |
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Answer» Thank\'s bro A gas evolution reaction is a chemical reactionin which one of the end product is a gas such as oxygen Or carbon dioxide |
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| 43280. |
What happen when iron is dropped in copper sulphate solution |
| Answer» The colour of iron changes brown and copper sulphate become colourless.Fe+Cuso4= Feso4 +Cu | |
| 43281. |
If this invisible molecular movement in body is necessary for life? If yes or no,why?? |
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| 43282. |
Give reason for the following Silver nitrate solution cannot be stored in copper containers. |
| Answer» Because copper is more reactive metal than silver. So, it will displace the silver from silver nitrate and form copper nitrate | |
| 43283. |
What is synthesis reaction with example |
| Answer» Synthesis reaction is type of reaction in which multiple reactant combine to from a single product. Synthesis reaction release energy in the form of heat and light ,so they are exothermic. An example of a synthesis reaction is the formation of water from hydrogen and oxygen | |
| 43284. |
Who to learn perodic tabel |
| Answer» you Can Search On My Loudaaa | |
| 43285. |
Why is alumminium and copper wire are cover with rubbr like material |
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Answer» Because it is bad insulator of electricity Because rubber materials are insulator and does not allow to follow current in surrounding and this may protect from electric shock and you and your family will be safe |
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| 43286. |
How long plants get water from roots like the redwood |
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| 43287. |
Pg no. 15 |
| Answer» Kayo question | |
| 43288. |
What do you mean by Ampier |
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Answer» When the 1 coulomb charged is pass through any area of cross section in 1sec is said to be ampere amperea unit of electric current equal to a flow of one coulomb per second. |
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| 43289. |
Hello friends koi online hai kya please chat me |
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Answer» Hello Nidhi Hi Hii Hello |
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| 43290. |
What are the three difference of respiration in plants and animals? |
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Answer» \tRESPIRATION IN PLANTS\xa0RESPIRATION IN ANIMALS\t\t1. Do not exhibit external ventilation or breathing movements1. Exhibit external ventilation or breathing movements2. There is no gaseous transport involved during respiration. The respiratory gases simply diffuse in and out of the cell2. The tissue fluid blood is responsible for the transport of gases3. Oxygen released during the process of photosynthesis acts as an additional source of oxygen for respiration3. Air is the only source of oxygen 4. The end product of anaerobic respiration is ethanol4. The end product of anaerobic respiration is lactic acid5. Produces a small amount of heat5. A larger quantity of heat is released6. Rate of respiration is slow6. Rate of respiration is comparatively faster\t In animals Respiration done by the lung. Oxygen is inhale by gills or lung and carbon dioxide is exhale. Respiratory gases are usually transported over long distance inside an animalIn plant Respiration done by root stem or leaves. Carbon dioxide is taken and oxygen is gave out by plant. Respiratory gases are usually transported in little area. ? In animal . Respiration is done by lungs |
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| 43291. |
What is buccal cavity?? |
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Answer» Buccal cavity also like mouth. Buccal cavity is a site where food is broken into simpler food but not fully little bit is broken Buccal cavity contain tongue ,teeth, salivary amylase It helps for digesting our food I am not sure but i think this is right ans |
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| 43292. |
The oxidation of iron to is a problem but the oxidation of aluminium to aluminium oxide is not.Why? |
| Answer» | |
| 43293. |
Alternating current |
| Answer» A flow of electricity that change direction regularly many times a second | |
| 43294. |
What is leaf |
| Answer» One of the thin,flat,usually green parts of a plant or tree | |
| 43295. |
Hlo...koi h .... |
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Answer» Yes?????????? Mst ... Or aap Ya bestie kaise hoo |
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| 43296. |
What is the valency of carbon, nickle, cobalt, argon, neon, scandium, chromium? |
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Answer» Argon is a noble Carbon-4 |
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| 43297. |
All formula\'s in chapter electricity? |
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Answer» V=IRI=Q/TH=I^2RT H=V^2RTP=VI H=VITP=I^2RH=VQP=V^2/R Kya |
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| 43298. |
Hlo frnds... Koi online hai kya.. ? |
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Answer» Ha bolo Hmm Hi aj Ji kaise ho Hii |
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| 43299. |
Properties of metals and non metals |
| Answer» \tS.NoPropertyMetalsNon-Metals1Physical StateMetals are solid at room temperature. Except mercury and gallium.Non-metals generally exist as solids and gases, except Bromine.2Melting and boiling pointsMetals generally have high m.pt and b.pt except gallium and cesium.Non-metals have low m.pt and b.pt except diamond and graphite.3DensityGenerally high.Generally low.4Malleability and DuctilityMalleable and ductile.Neither malleable nor ductile.5Electrical and thermal conductivityGood conductors of heat and electricity.Generally poor conductors of heat and electricity except graphite.6LusterPoses shining luster.Do not have luster except iodine.7Sonorous soundGive sonorous sound when struck.Does not give sonorous sound.8HardnessGenerally hard except Na, KSolid non-metals are generally soft except diamond.\t | |
| 43300. |
Hey frnds!! ???????? |
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Answer» Ha.. ??.. Hy dost Itne dino baad mili ho Hlow Anushka Hi bestie? |
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