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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
| 3301. |
Give any three symptoms of TB. |
| Answer» <p>Coughing that lasts three or moreweeks.</p><p>Coughing up blood.</p><p>Chest pain, orpainwith breathing or coughing.</p><p>Unintentionalweight loss.</p><p>Fatigue.</p><p>Fever.</p> | |
| 3302. |
why should we need to drink clean water |
| Answer» <p>1. Clean water is vital to the human body.</p><p>The human body is 50 to 70 per cent water, and needs a regular supply of clean water to maintain health. We need clean drinking water. We need clean water for cooking and making beverages. Healthy eating and clean water go hand in hand. We must work to clean water worldwide in order to maintain sufficient sources to supply this need.</p><p>2. Clean water is vital to our food.</p><p>If we fail to clean water and keep it clean, we will be shut up to a diet of contaminated food. Not only fish, but other meats, fruits, and vegetables will deliver contamination to us. If we want healthful, clean fish to leap forth from rivers, streams, and oceans, we will have to clean water. If we want healthful, organic produce, we will have to clean water used to irrigate produce.</p><p>3. Clean water is vital to human health.</p><p>Clean drinking water is vital to health, yet the UN and the World Health Organization (WHO) report that 1.1 billion people around the globe lack access to clean drinking water. The health consequences are devastating. The UN attributes 2.2 million deaths annually to poor water and sanitation. If we clean water, provide better sanitation, and teach people how to keep water clean, future generations can enjoy longer and healthier lives.</p> | |
| 3303. |
what is main different between plant proteins and animal proteins? |
| Answer» <p>One of the main differences between plant and animal proteins involves their amino acid contents.Amino acids are the building blocks of protein. When the body digests the proteins in food, it breaks them down into amino acids.The body may need different amino acids at different times. Many people believe that the diet should include complete sources of protein, which contain all nine essential amino acids.</p><p>Some animal products are complete sources of protein, such as:</p><p>fish</p><p>various types of eggs</p><p>dairy products, such as cheese, milk, and whey</p><p>red meat from cows, bison, and deer</p><p>poultry from sources such as chickens,turkeys, and quails</p><p>meat from less common sources, including boars, hares, and horses</p><p>Most plant proteins are incomplete, which means that they are missing at least one of the essential amino acids.However, some plant-based foods, such asquinoaand buckwheat, are complete sources of protein.It is important for vegetarians and vegans to mix their protein sources and ensure that they are getting all of the essential amino acids.Also, keep in mind that some sources of plant protein may take longer for the body to digest and use.The following are examples of plant-based foods rich in protein:</p><p>grains</p><p>lentils</p><p>nuts</p><p>beans</p><p>legumes</p><p>certain fruits, such as avocados</p><p>soy</p><p>hemp</p><p>rice</p><p>peas</p><p>Many other nuts, grains, and vegetables also contain high amounts of protein.</p><p>powered by Rubicon Project</p> <p>Plantandanimal proteinsvaryin thenumberofamino acids they contain. Oneofthemain differences between plantandanimal proteinsinvolves their amino acid contents. Amino acids are the building blocksof protein. When the body digests theproteinsin food, it breaks them down into amino acids.</p> <p>Plantandanimal proteinsvaryin thenumber of amino acids they contain. One of the maindifferences between plantandanimal proteinsinvolves their amino acid contents. Amino acids are the building blocks ofprotein. When the body digests theproteinsin food, it breaks them down into amino acids.</p> <p>Plantandanimal proteinsvaryin thenumberofamino acids they contain. Oneofthemain differences between plantandanimal proteinsinvolves their amino acid contents. Amino acids are the building blocksof protein. When the body digests theproteinsin food, it breaks them down into amino acids.</p> <p>main difference between plant proteins and animal proteins involves their amino acid contents.</p> <p>both have different amino acids content</p> | |
| 3304. |
Give a neat and clean diagram of crystalisation. |
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| 3305. |
Why are ribosomes known as protein factory of cell |
| Answer» <p>as it Store protein that's why</p> <p>Ribosomes are called“protein factories” because theproteinsare manufactured in theribosomes.The proteinsare made up of amino acids (smaller units). ... When you eat meat or egg whites, it gets broken down into amino acids, which are rearranged in theribosomesaccording to code present in the DNA.</p> <p>because it synthesis protein</p> <p>Because protein are manufactured in ribosomes</p> <p>because it synthesis protein</p> <p>bcoz the protein are manufactured in the ribosomes...</p> <p>it produce proteins and lipids in a cell</p> <p>ribosome is known as protein factory of the cell as they synthesis protein.</p> | |
| 3306. |
why are the ribosomes are called ' proteins factorise ' |
| Answer» <p>Ribosomesarecalled“protein factories” because theproteinsare manufactured in theribosomes.Theproteinsare made up of amino acids (smaller units). When you eat meat or egg whites, it gets broken down into amino acids, which are rearranged in theribosomesaccording to code present in the DNA.</p> | |
| 3307. |
The radius of curvature of the path of a chaparticle in a uniform magnetic field is directlyportional to the-(B)(A) (Charge on the particle)(B) (Momentum of the particle)(c) (Energy of the particle)(D) (Strength of the field) |
| Answer» <p>The gryoradius is then given byr=mv/qBmomentum of particle mvoption b</p> | |
| 3308. |
what are ribosomes |
| Answer» <p>a minute particle consisting of RNA and associated proteins found in large numbers in the cytoplasm of living cells. They bind messenger RNA and transfer RNA to synthesize polypeptides and proteins.</p> | |
| 3309. |
दिन :...गृहकार्य विवरणWhat is Periodic motion 2 Givean example |
| Answer» <p>Periodic motion is a type of motion that repeats itself. For example, motion of earth around the sun is periodic because earth completes a full revolution in one year and continues to revolve.</p> <p>periodic motion is a type of motion that repeats itself</p> <p>Periodic motion is a type of motion that repeats itself. For example, motion of earth around the sun is periodic because earth completes a full revolution in one year and continues to revolve.</p> <p>Periodic motion is themotion that isrepeated in equal intervals of time.The two instances of periodic motionthat is effective in measuring time are:example -1) Rotation of the earth around its axis ( 24 hours)2) Revolution of the earth around the sun ( 365 1/4 days)</p> <p>periodic motion is that which repeats itself,for example:-motion of the moon around the Earth...to complete revolution</p> <p>when an object moves to and fro is known as periodic motion example pendulum of a watch</p> <p>Periodic motion is a type of motion that repeats itself. For example, motion of earth around the sun is periodic because earth completes a full revolution in one year and continues to revolve</p> | |
| 3310. |
2.Describe the different methods of asexual reproduction. Give example |
| Answer» <p>The various modes of asexual reproduction in plants are as follows:(i)Vegetative propagation:It is the ability of a plant to produce new plants from roots,stems, leaves, and buds. Vegetative propagation is divided into two types.Natural vegetative propagation: This type of vegetative propagation occurs easily innature and involves simple vegetative parts. Potato plant sprouting from an eye is acommon example.</p><p>Artificial vegetative propagation: This type of vegetative propagation is performedmanually and generally occurs in laboratory conditions. The formation of a completeplant from a stem cutting of rose is a common example of this method.</p><p>(ii)Budding:It involves the formation of a new individual from a bulb-like projectioncalled a bud. The bud grows and gets detached from the parent to form a new individual.It is commonly observed in yeast.(iii)Fragmentation:It is a form of asexual reproduction where a new organism is formedfrom the fragments of the parent body. It is the only mode of asexual reproduction inSpirogyra.(iv)Spore formation:Many non-flowering plants reproduce through spore formation.Spores are tiny cells protected by a thick wall. Fungi such as bread moulds reproduceasexually using this method.</p> | |
| 3311. |
(b) Mention the advantages of usinga machine. |
| Answer» <p>The following are the chief advantages of the use of machinery:</p><p>Use of Natural Forces:</p><p>Machinery has harnessed the forces of nature in the service of man. Man can fly in the air; he can send messages thousands of miles away; he generates electricity from waterfalls. All this he has done with the aid of machinery. For such jobs, the use of machinery is indispensable.</p><p>Heavy and Delicate Work:</p><p>Tasks which are too heavy or too delicate for human muscles to do can be done easily by a machine. A crane can lift loads which man never can. No man can produce silk as fine and delicate as a spider’s web, but a machine can. Without the aid of machinery such jobs would not have been done.</p><p> Faster Work:</p><p>While man can make only a few dozen pins in a day by himself, with the help of machinery he can make thousands. A charkha cannot spin as much yarn in a year as a spinning machine can in one day. We value machinery for the speed with which it works, and in the modern world speed matters the most.</p><p>More Accurate Work:</p><p>No painter can paint exactly the same picture twice. But a machine can turn out thousands of identical articles. Production has thus been standardized. Only machines are capable of mass production.</p><p>Strain on:</p><p>Human Muscles Relieved. The work of the labourer has become much lighter.-He has simply to press a knob, and lo! the machine starts working! Thus machinery has proved an great blessing to the workers.</p><p>Cheap Goods:</p><p>The-use of machinery has resulted in large-scale production and has reduced costs to levels never dreamt of before. Thus cheap goods have been placed in the hands of consumers. A man of ordinary means can now enjoy goods and services which were not available even to a rich man in the past. Consequently the standard of living has risen.</p><p>Mobility of Labour:</p><p> In most industries, the machines used are very similar. A worker, therefore, can easily move from one industry to another. This is helpful in relieving or preventing unemployment as well as finding better jobs.</p><p>More Employment:</p><p>The introduction of machinery has created many new occupations. It has thus widened the scope of employment. In the long run, machinery creates more employment than displacing labour immediately.</p><p>Disagreeable Jobs:</p><p>All dirty jobs can be done by machines. Human beings are thus relieved of all disagreeable and unpleasant jobs. What a great boon machinery is to the under-dog!</p><p>PLEASE HIT THE LIKE BUTTON</p> | |
| 3312. |
2.Give an example where heat is convertedinto sound and light energy |
| Answer» <p>First, it’s heat, not heat energy. Heat has a precise meaning. Heat energy doesn’t. Heat is thetransferof energy from a warmer body to a cooler body.</p><p>There are typically theee forms: diffusion, convection, and radiation. Light is a form of radiation, so light is often a form of heat. When the sun shines, that is heat. When a lightbulb lights up the room, that is also a form of heat.</p><p>Let’s take these two examples. Inside the solar core, hydrogen fuses into helium and releases gamma rays (a form of light). These interact with the rest of the matter in the sun, slowly diffusing and convecting through the sun from the really hot solar core to the slightly less really hot surface. At the surface, the radiation is free to go all the way to Earth as both heat and light.</p><p>Inside a power plant, natural gas is burned. This is used to heat water, which in turn is used to produce work. This work turns a generator, creating electricity. That electricity is sent through a wire, increasing the temperature until it starts radiating light. The light is a form of heat.</p> | |
| 3313. |
7. State two differences betweena convex and a concave lens. |
| Answer» <p>thank you all</p> | |
| 3314. |
7. State two differences between a convex and a concave lens. |
| Answer» | |
| 3315. |
ens.7.State two differences between a convex and a concave l |
| Answer» <p>Ty but m not getting whole image </p> | |
| 3316. |
, In Thar region, the shifting sand dunes arelocally known as |
| Answer» <p>dhrian is the answer</p> <p>okkk</p> | |
| 3317. |
+35+6100+15इसलिए 2< 13अत: 2 और 3 के मध्य की तीन परिमेय संख्याएँ 4.2-पाठ्यपुस्तक के प्रश्नप्रश्नावली-1प्रश्न 1. निम्नलिखित परिमेय संख्याओं का योगफलज्ञात कीजिए-(संख्या रेखा पर भी हल कीजिए)=x22) ल.स. (2, 4) = 4 |
| Answer» <p>Given, rational number is .</p><p>The given fraction represents 3 parts out of 4 equal parts. The number line representation is shown below,</p><p></p><p>iiii</p><p>Given, rational number is .</p><p>The rational number represents 5 parts out of 8 equal parts. Negative sign shows that the number lies to the left of zero. The number line representation is shown below,</p><p></p><p>iiiiii</p><p>Given, rational number is .</p><p>Rational number can be written as .</p><p>It represents 1 full part and 3 parts out of 4 equal parts. Negative sign shows that the number lies to the left of zero. The number line representation is shown below,</p><p></p><p>iviv</p><p>Given, rational number is .</p><p>The given fraction represents 7 parts out of 8 equal parts. The number line representation is shown below,</p> <p>5/2-3/47/4 answer answer</p> <p>-2/3-4/5+5/6</p> | |
| 3318. |
Write each of the following as a percentage.(i) 6/100(ii) 15/100 |
| Answer» <p>We need to multiply the given number by 100% to express it as a percentage.</p><p>i) (6/100)*100%= 6%</p><p>(ii) (15/100)*100%=15%</p> | |
| 3319. |
5. I200 dm3 at 30°c?5.2and 1.25.2 A vessel of 120 ml. capacity contains a certain amount of gas at 35 ecpressure. The gas is transferred to another vessel of volume 180 mL at 352 barwould be its pressure?Whif statr gVenRT: show that at a given temperature cdensity of |
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| 3320. |
2) Inductance(3) Capacitor(4) Motor7.If the maximum circumference of a sphere is 2 m,then its capacitance in water would be :-Dielectric constant of water 81)(1) 27.65 pF(3) 236.5 pF(2) 2385 pF42865 pF166 |
| Answer» | |
| 3321. |
UCCe luded in the van.501EXERCISE 1-DThe population of a city A is 36,80,509 and the population of city Bis 1,68,71.631. Find the total population orboth the cities.) |
| Answer» <p>3680509+16871631= 20552140</p> <p> 3608509+16871631=20552140is solve them</p> <p>Population of a=3680509Population of b=16871631Total population =380509+16871631=20552140</p> <p>20552140 is the correct answer of the given question</p> <p>3608509+16871631=20552140 is the correct answer</p> | |
| 3322. |
2. Give three uses of polyester, and explain the reason for each use. |
| Answer» | |
| 3323. |
1. Give any three uses of water. |
| Answer» <p>1.we use water to wash our clothes and plates .2.the plants need water to grow 3.we use water in cooking and drinking </p> | |
| 3324. |
What is an electromagnet? Give three uses of electromagnet |
| Answer» | |
| 3325. |
hat is an electromagnet? Give three uses of electromagnets |
| Answer» | |
| 3326. |
14.4 ELECTROMAGNET |
| Answer» <p>Answer:The magnetic field produced due to current flowing in a coil or a solenoid can be used to magnetise a material like soft iron temporarily. The insulated copper wire is wrapped on a soft iron piece. When current is passed through the coil using a battery and a key the iron piece behaves like a bar magnet as long as current is being passed. Such a magnet is called an electromagnet.</p> | |
| 3327. |
Where are the germs present? |
| Answer» <p>Germs are foundall over the world, in all kinds of places. The four major types ofgermsare bacteria, viruses, fungi, and protozoa. They can invade plants, animals, and people, and sometimes they can make us sick.</p> | |
| 3328. |
where malaria germs are located |
| Answer» <p>The larvae occur in a wide range of habitats but most species prefer clean, unpolluted water. Larvae of Anopheles mosquitoes have been found in fresh- or salt-water marshes,mangrove swamps, rice fields, grassy ditches, the edges of streams and rivers, and small, temporary rain pools.</p> | |
| 3329. |
( \operatorname { sin } 3 x + \operatorname { sin } x ) \operatorname { sin } x + ( \operatorname { cos } 3 x - \operatorname { cos } x ) \operatorname { cos } x = 0 |
| Answer» <p>LHS = (sin3x+sinx)sinx + (cos3x-cosx)cosx = (2sin2xcosx)sinx + (2sin2x(-sinx))cosx = 2sin2xcosxsinx -2sin2xcosxsinx =0 =RHS</p> | |
| 3330. |
Q.3. What precautions can you take in your school to reduce the ineideneaotinfectious diseases ? |
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| 3331. |
The stomach releases hydrochloric acids and _______ juices which directly acts on the food. |
| Answer» <p>Digestive</p> | |
| 3332. |
It peacerully.Amoeba ingests its food with the help of its false feet or pseudopodia.The food is digested in the food vacuole.Exercises1. Fill in the blanks:(a) The main steps of nutrition in humans areand(b) The largest gland in the human body is(c) The stomach releases hydrochloric acid and_juices whicact on food.(d) The inner wall of the small intestine has many finger-like outgrowtcalled(e) Amoeba digests its food in the2. Mark T" if the statement is true and 'F' if it is false:(a) Digestion of starch starts in the stomach. (T/F)(b) The tongue helns in miying food with anim |
| Answer» <p>bahi kiska answer Dena hai A. B. C. c d e kiska Dena hai </p><p>please like my answer then I solve this question </p><p>please like my answer then I like your answer to all of </p> <p>i don't know the answers for this question</p> | |
| 3333. |
explain the process of digestion in human |
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| 3334. |
i. Explain, with the help of a labelled diagram, how a soda-acid type fire extinguisher works. |
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| 3335. |
Which is not an acid?lemmon iuice (ii)orange juice (ii) grapes(iv) baking soda |
| Answer» <p>option 4 might be an answer</p> | |
| 3336. |
how is co2 gas tested in labrotary |
| Answer» <p>Lime water turns milky as the Calcium hydroxide (chemical name for limewater) reacts withcarbon dioxideto form Calcium Carbonate which is insoluble in water and thus forms a milky white precipitate</p> | |
| 3337. |
.How is CO2 gas tested in laboratory? |
| Answer» <p>The most effective way totestfor CO2is to bubble thegasthrough "limewater", a diluted solution of calcium hydroxide (slaked lime). When you bubblecarbon dioxidethrough the solution, it forms a solid precipitate of calcium carbonate – chalk or limestone.</p> | |
| 3338. |
spongy tissue called velamen is present in |
| Answer» <p>Velamen tissue is found in the aerial roots of certain epiphytic orchids (e.g. Vanda)It is a protective tissue layer.The exodermis is surrounded by velamen, consisting of one to several layers of cells, which can develop root hair under proper environmental conditions. The velamen arises from the root tip by division of a special tissue.</p> | |
| 3339. |
how are levels tested for starch |
| Answer» <p>Iodine is used to test the starch in leaves by this scientific way: Chlorophyll from leaf should be removed by boiling it in alcohol, then two drops of iodine are added. If the colour changes to blue, then it indicates the presence of starch in the leaves.</p> | |
| 3340. |
Sources of starch |
| Answer» <p>Sources of starch are wheat, rice, maize, bajra, potato and sweet potato</p> | |
| 3341. |
Name true chambers and acessory chembers of heart |
| Answer» <p>The heart has four chambers:</p><p>The right atrium receives blood from the veins and pumps it to the right ventricle.</p><p>The right ventricle receives blood from the right atrium and pumps it to the lungs, where it is loaded with oxygen.</p><p>The left atrium receives oxygenated blood from the lungs and pumps it to the left ventricle.</p><p>The left ventricle (the strongest chamber) pumps oxygen-rich blood to the rest of the body. The left ventricle’s vigorous contractions create our blood pressure.</p> | |
| 3342. |
what is stomach ulcers? |
| Answer» <p>Stomach ulcers, which are also known as gastric ulcers, are painful sores in the stomach lining. Stomach ulcers are a type ofpeptic ulcerdisease. Peptic ulcers are any ulcers that affect both the stomach and small intestines.Stomach ulcers occur when the thick layer of mucus that protects your stomach from digestive juices is reduced. This allows the digestive acids to eat away at the tissues that line the stomach, causing an ulcer.</p> | |
| 3343. |
(a) Digestion of starch starts in the stomach. (T/F |
| Answer» <p>False. Digestion of starch does not start in stomach. </p> | |
| 3344. |
15. What are the functions of liver? |
| Answer» <p>The liver's main job is to filter the blood coming from the digestive tract, before passing it to the rest of the body. The liver also detoxifies chemicals and metabolizes drugs. As it does so, the liver secretes bile that ends up back in the intestines. The liver also makes proteins important for blood clotting and other functions.</p> | |
| 3345. |
1. Compare the properties of electrons, pi2. What are the limitations of J.J. Thomson's model of the,atom |
| Answer» <p>According toJ.J.Thomson's modelof an atom, an atom consists of a positively charged sphere with electrons embedded in it. However, it was later found that the positively charged particles reside at the centre of the atom called the nucleus, and the electrons revolve around the nucleus.</p> | |
| 3346. |
Explain why compounds are homogeneous in nature? |
| Answer» <p>Compoundsare of similar pure substances, making them able to bond chemically (homogeneous), but mixtures can be different substances physically combined (heterogeneous) orhomogeneous.</p> | |
| 3347. |
What do you understand by Homogeneous Mixture? |
| Answer» <p>A homogeneous mixture is a mixture that has been mixed together so well that the different parts will not settle out on their own. Solids, liquids, and gasses can be homogeneous mixtures. Solutions are a type of liquid homogeneous mixture.Examples of homogeneous mixtures are air in a balloon, salt water in a bottle.</p> | |
| 3348. |
नर अदा o Kool yendilur_ kit पडाcomplde 10 oAcllaklens? |
| Answer» <p>The pendulum takes 10 oscillations in 15 seconds.The pendulum completes in Oscillation in (15/10)= 1.5 seconds.So, time period of the simple pendulum is 1.5 seconds.</p><p>Please hit the like button if this helped you</p> | |
| 3349. |
Root Mean Square Velocity |
| Answer» <p>The root mean square velocity is the square root of the average of the square of the velocity. As such, it has units of velocity. The reason we use the rms velocity instead of the average is that for a typical gas sample the net velocity is zero since the particles are moving in all directions.</p> | |
| 3350. |
Give the structural formula of 2-Methylpropan-2-ol |
| Answer» | |