Explore topic-wise InterviewSolutions in Science.

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.

3601.

Answer the following questions.Write the difference hetween heat antemperature

Answer» <p>The hotter an object is, the faster the motion of the molecules inside it. Thus, theheatof an object is the total energy of all the molecular motion inside that object.Temperature, on the other hand, is a measure of the averageheatorthermalenergy of the molecules in a substance.</p>
3602.

a Kxplain how sol pollution and soll erosian uza Sobe the folowing crossword puzale with the clues given:Across2 Plantation prevents it.5. Use should be banned to avoid soil pollution.6 Type of soil used for making pottery7. Living organism in the soil.Down1. In desert soil erosion occurs through.3. Clay and loam are suitable for cereals likĂŠ.4. This type of soil can hold very little water.5. Collective name for layers of sol.

Answer» <p>What types of soil can be used to make toys ?</p>
3603.

Which among the following is a manure?(A) Urea(C) Ammonium sulphate(E) of these(B) Super phosphate(D) Nitrate

Answer» <p>Manure is organic matter, mostly derived from animal feces except in the case of green manure, which can be used as organic fertilizer..</p><p>here none of them is manure.</p>
3604.

Manipur's popular dance form is called Mohiniyattam /Manipuri.

Answer» <p>Manipuri dance, also known as Jagoi, is one of the major Indian classical dance forms, named after the region of its origin – Manipur, a state in northeastern India bordering with Myanmar, Assam, Nagaland and Mizoram.</p>
3605.

What is meant by the following terms?1) Rearing (ii) Shearing (iii) Sericultu

Answer» <p>rearing is the correct answer of the given question</p> <p>Rearing is the best answer</p> <p>Rearing is the correct answer.</p> <p>rearing means removing fleece from the body of sheep</p> <p>rearing is the right answer of the given question</p> <p>sericulture means farming of silk is the cultivation of silkworms to produce silk.</p><p>Shearing is a process of cutting of sheep's woollen fleece. </p><p>Rearing is a process of domesticating a wild animal </p> <p>rearing-Silkworm rearing is an extensive month-long exercise starting from egg stage and terminating in adults laying eggs and dying their natural death. During this course, they pass through five larval instars intervened by four moults, cocoon and pupal stage. Silkworm rearing effectively means the culturing of five larval instars as other stages like egg, pupa and adults are non-feeding stages. Whole life cycle spans through 45-55 days with 10-12 days of egg stage, 25-30 days of larval stage, 2-3 cocoon spinning days, 5-7 days as pupal duration and 4-5 days in adult stage. Prevailing environmental conditions especially, temperature and relative humidity conditions are vital in determining silkworm physiology as it is a cold-blooded organism. Hence, maintenance of recommended temperature, relative humidity (RH), light and ventilation conditions for every stage of rearing are of utmost importance for successful silkworm rearing. Dark condition, room temperature and 65% RH is required for incubation of silkworm eggs. 27-28 °C and 80-85% RH is required for first and second instar larvae (Chawki silkworm rearing), while 24-25 °C and 60-65% RH is required for third, fourth and fifth instar larvae (late-age silkworm rearing). During the intervening moulting stage of 24 hour each between two instars, temperature of 25-26 °C and RH 60% is recommended for the smooth integument change over. Room temperature and 65% RH is required during spinning, cocoon preservation, moth emergence, coupling, decoupling processes. Dark conditions with room temperature and 75-80% RH is required for oviposition process. A day in silkworm culture consists of various activities like harvesting of mulberry leaves, food preparation, feeding, bed cleaning etc. Silkworms are fed four times in a day – morning (9-10 A.M.), afternoon (1-2P.M.), evening (4-5P.M.) and night (9-10P.M.). Leaves after harvesting from plantations are first washed with plain running water and then treated with mild KMnO4 for general disinfection. After adequate drying they are fed to silkworms. During first and second instars, silkworms are fed with chopped tender and succulent mulberry leaves with high moisture content from apical portions of the plant. During third instar, 3-4 pieces of medium sized leaves are given to the silkworms. Later on, the entire leaf and complete shoot is given during fourth and fifth instar after required treatment. Bed cleaning is an important process to ensure the hygiene in the immediate vicinity of silkworms in order to protect them from infection. Four different mesh-sized bed cleaning nets are used for cleaning the rearing beds. Bed cleaning is done once in first instar, twice in second instar and preferably daily in third, fourth and fifth instar. Bed cleaning nets are spread just before the morning feed. Before the afternoon feed, nets with the silkworms are shifted to new beds and feeding is then resumed. The litter, leftover food and dead silkworm, if any, are removed carefully and disposed off away from the rearing house. Moulting is the process when silkworms seized feeding, becomes immobile and prepare themselves for shedding their old skin to accommodate the fast growth. Four moults takes place during the entire larval period. During this period, special care is required for the moulting worms. Lime powder is dusted in the rearing bed to reduce the humidity to 60-65% RH to facilitate the moulting process. Moulting period lasts for about 24 hrs and care should be taken not to disturb silkworms during this period. During late fifth instar, after completing the feeding silkworms reaches the ripened stage (ready –to-spin silk). Ripened silkworms are identified by their characteristics movement to the corners of the rearing treys, reduction in size by one-third and transparent yellow appearance. These ripened silkworms are transferred to the mountages (equipment to provide support for cocoon formation) for spinning cocoons. Plastic collapsible mountage, bamboo-brush mountage and mountage made out of locally available materials (dried leaves and branches of different plants arranged in a zig-zag manner in card-board boxes). After two-three days of spinning, cocoons are harvested from the mountages. Cocoons can be used for either propagating the generation or extraction of silk fibre. For propagating generation, cocoons are left at the room temperature and 65-70% RH for moths to emerge from cocoons after passing through intermediate pupal stage after 6-7 days. After emergence, males and females are coupled for four-five hours, decoupled, and females are kept for oviposition process. Males can be used for second coupling after short-term refrigeration at 5 °C for 1-2 days. After this, the adult approaches their natural deaths in 1-2 days. The silk worm larvae hatched out of oviposited eggs in 10-12 days after completing embryonic growth. For extracting silk, the cocoons are subjected to the stifling process in which, the pupa inside the cocoons are killed by subjecting them to high temperature treatment via. sun drying, steam or hot air in order to maintain the continuity of silk filament making up the cocoon. Then, cocoon is boiled or cooked for 3-4 mins at 95-96 °C to make the serecin soft to dissolve upto 25-26%. Then, silk filament can be extracted out easily on suitable reeling apparatus by finding the true end in brushing process in which the coarser floss layer is removed.</p> <p>Rearing is right answer.</p><p>Please Like My Answer And Then I Will Also Like Your Answer.</p>
3606.

What is anArchimedes serew? Where was it used for the first time?

Answer» <p>Archimedes Screw has been used to lift water to higher levels since ancient times. Archimedes (287-212 B.C.) is the traditional inventor of this device, which was originally used for irrigation in the Nile delta and for pumping out ships.</p>
3607.

Vhat is adaptation?hat are the characteristics of living tlhat is the difference between terresthat is the basic function of the rootsthe following questions in detailr

Answer» <p>1)the process of change by which an organism or species becomes better suited to its environment.2)Here is the list of characteristics shared by living things:</p><p>Cellularorganization.</p><p>Reproduction.</p><p>Metabolism.</p><p>Homeostasis.</p><p>Heredity.</p><p>Response to stimuli.</p><p>Growthanddevelopment.</p><p>Adaptation throughevolution.</p><p>4)Roots are very important for the plant because they suck thewaterandnutrientsup out of the soil and into the plant. But the roots are not only good for the plant, they are good for soil. When it rains, the roots hold the soil in place so it is not washed away. When soil gets washed away it is called erosion</p>
3608.

cavaleratheieLay mon

Answer»
3609.

what is green house gas.

Answer» <p>greenhouse gas is a gas in an atmosphere that absorbs and emits radiant energy within the thermal infrared range. This process is the fundamental cause of the greenhouse effect.</p> <p>A greenhouse gas is a gas in an atmosphere that absorbs and emits radiant energy within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. The primary greenhouse gases in Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide, and ozone</p>
3610.

.1The main green house gas .................

Answer» <p>Carbon Dioxide is the main green house gas.</p> <p>carbon dioxide is main green house</p> <p>carbon dioxide is green house gas</p>
3611.

what is the main basic characteristics feature of classification

Answer» <p>Taxonomyis the classification of organisms. The advent of genetic technology and DNA fingerprinting has allowed for a much more accurate and complete analysis of how organisms are related. Modern taxonomists have found that organisms that were once thought to be related are not connected at all, and others that show no external similarities are actually very similar genetically.</p>
3612.

Caloulate the atomic mass (average) of chlortne using theSohowing duta% Natural AbundanceMolar Mass34 9030.905PC24.23

Answer»
3613.

3) A word processoy wold most likely to be used to doa&gt; keep an accounナmoney spentb do a computer search in medfa centerMaintain an inventory d&gt; Type a biograpуреhy

Answer» <p>A word processor can be used to create, format or store a text document. Hence, it would be most likely used to (d) type a biography.</p>
3614.

ImpS Heart Rare

Answer» <p>Heart rate, also known aspulse, is the number of times a person'sheart beatsper minute. Normalheart ratevaries from person to person, but a normal range for adults is 60 to 100beatsper minute.</p> <p>Heart rate also known as pulse rate is 72beat/min</p> <p>Heart rate, also known aspulse, is the number of times a person'sheart beatsper minute. Normalheart ratevaries from person to person, but a normal range for adults is 60 to 100beatsper minute, according to the Mayo Clinic</p> <p>72/minutes </p>
3615.

(V) U0.01 sy. Il(e) 2324The areas of certain regions are given below isNow convert them into sq. m.(i) 625 sq. cm (ii) 5817 sq.cm (ii) 6

Answer» <p>100cm = 1 m1 cm = 1/100 m625 cm^²= 625/100 00m^2</p> <p>(I) 0.625 sq m(ii) 5.817 sq m (ii) </p> <p>answer is correct options A</p> <p>(1)0.0625 Sq.m (2)0.5817 Sq.m </p>
3616.

What is the chemical composition of Sodium Bicarbonate

Answer» <p>Sodium bicarbonate, also commonly known as baking soda, is commonly seen as a white, fine powder and has the chemical formulaNaHCO3. It has one sodium atom, one hydrogen atom, one carbon atom, and three oxygen atoms. It is a very useful chemical that is alkaline in nature.</p> <p>Na2HCO3 is the chemical composition</p> <p>Sodium bicarbonate, also commonly known as baking soda, is commonly seen as a white, fine powder and has the chemical formulaNaHCO3. It has one sodium atom, one hydrogen atom, one carbon atom, and three oxygen atoms. It is a very useful chemical that is alkaline in nature</p> <p>NaHCO3 is the chemical composition</p>
3617.

The following is an antibiotl(i) Sodium bicarbonate (l1) Streptomycin(ill) Alcohol(iv) Ye

Answer» <p>ii) Streptomycin is an antibiotic used to treat a number of bacterial infections</p>
3618.

Least paramagnetic property is shown by

Answer» <p>Paramagnetism is due to the presence ofunpaired electronsin the material, so all atoms with incompletely filledatomic orbitalsare paramagnetic.</p><p>option (c) Ni is the right a answer</p>
3619.

Give reason Cu+ is colourless but Cu++ is coloured.

Answer»
3620.

What is polymerisation?

Answer» <p>Polymerization is a process of reacting monomer molecules together in a chemical reaction to form polymer chains or three-dimensional networks.</p>
3621.

8. On what basis do we choose a material to make an object?

Answer» <p>- cost e.g. stainless steel might be better than normal steel for a certain product but it is more expensive. </p><p>- the physical properties of the material e.g. you might need a low density high tensile strength material for an aircraft wing </p><p>- the chemical properties of the material e.g . you wouldn't make a acid-storage container out of iron because iron reacts with acid </p><p>- its availability e.g. you might want an exotic hardwood for furniture but it is scarce </p><p>- how easy it is to work with e.g. skilled workers might be needed for stainless steel welding, so you might choose not to use stainless steel for a product because you know you can't get the skilled staff required</p>
3622.

1)Segregate the following items under the given headers:.Chair, plastic, wood, pen.MATERIAL OJECTOBJECT

Answer» <p>material -woodobject -chair plastic pen</p>
3623.

3Give an example to show that the choice of material to make an object depends on its use.

Answer»
3624.

K Q. 1. Define atomic number.

Answer» <p>The number of protons or electrons normally found in an atom of a given chemical element. The higher the atomic number, the heavier the atom is. In a neutral atom, the number of protons and electrons is the same</p>
3625.

23: The diagram below shows Earth, as viewed from space, as it moves around the Sun.EarthNorthSunA BPole(not drawn to scale )Approximately how long does it take Earth to move from position A to position B?a. 1 yearb. 1 dayc. 6 monthsd. 1 Week

Answer» <p>It will take 6 months</p> <p>As it takes 1 year to go around the sun</p>
3626.

Chair, plastic, wood, pen.MATERIALOBJECTlestChoisWhat is the above process known as?

Answer» <p>the process of converting raw material into object is manufacturing</p>
3627.

how many ear ossicles are present in the skull

Answer» <p>The ossicles (also called auditory ossicles) are three bones in either middle ear that are among the smallest bones in the human body. They serve to transmit sounds from the air to the fluid-filled labyrinth (cochlea). The absence of the auditory ossicles would constitute a moderate-to-severe hearing loss. The term "ossicle" literally means "tiny bone". Though the term may refer to any small bone throughout the body, it typically refers to the malleus, incus, and stapes (hammer, anvil, and stirrup) of the middle ear.</p><p>PLEASE HIT THE LIKE BUTTON</p>
3628.

ear ossicles define

Answer» <p>The ossicles (also called auditory ossicles) are three bones in either middle ear that are among the smallest bones in the human body. They serve to transmit sounds from the air to the fluid-filled labyrinth (cochlea). The absence of the auditory ossicles would constitute a moderate-to-severe hearing loss. The term "ossicle" literally means "tiny bone". Though the term may refer to any small bone throughout the body, it typically refers to the malleus, incus, and stapes (hammer, anvil, and stirrup) of the middle ear.</p><p>PLEASE HIT THE LIKE BUTTON!</p>
3629.

The distance between twoconsecutive meridians decreasestowards the poles.

Answer» <p> The distance between two consecutive parallels of latitude is equal to 111km. Because they are parallel or equidistant throughout 40,000/360 while the distance between two consecutive meridians is 111km only at the equator because meridians are broadest at the equator &amp; they converge at the poles, and hence they decrease.</p><p>Like my answer if you find it useful!</p>
3630.

EXERCISE 102the correct option and give justification.do the length of the tangent to a circle is 24 cm and the dista25The radius of the circle is(B)12 cm7cm(D)24.5cm1Scm

Answer»
3631.

define lichens

Answer» <p>A lichen is not a single organism but a symbiosis among different organisms like fungus and a cyanobacterium oralgae. Cyanobacteria are also referred to as blue-green algae despite the fact of being distinct from algae. The non-fungal part is known as photobiont that contains chlorophyll. Many lichen partners include one photobiont and one mycobiont which is not universal and there are lichens with more than one photobiont partner. The fungal partner is viewed to be composed of filamentous cells and every filament is known as hypha</p>
3632.

Q.15 What are lichens ?

Answer» <p>Lichens are a complex life form that is a symbiotic partnership of two separate organisms, a fungus and an alga. The dominant partner is the fungus, which gives the lichen the majority of its characteristics, from its thallus shape to its fruiting bodies. The alga can be either a green alga or a blue-green alga, otherwise known as cyanobacteria. Many lichens will have both types of algae.</p> <p>thanks </p>
3633.

(a) Can we grow plants without light? Whv?mean by sepal?

Answer» <p>can'nt grow plant without light because not raise of sun in the plant , plant will not grow</p>
3634.

roket kis sidhant par karya krta h

Answer» <p>it is conservation of momentum</p><p>A rocket works by expelling gases from one end at a very high velocity. The escaping gases have a very high speed and this with their mass translates to a very large momentum. Due to the principle of conservation of momentum the body of the rocket is pushed forward. If both the momentum of the gases as well as that of the rocket are added the sum is zero..</p> <p>tx</p>
3635.

Most of the hair that grow on men's body can't grow on women's body. Why?

Answer» <p>Hormones. Thickbody hair iscalled androgenichairbecause itsgrowthdepends on the production of androgens, a unisex hormone found in bothmenandwomen. Levels of this hormone are significantly higher inmen, whichiswhy they generally have thickerbody hairand why they havehaironmoreareas of theirbody.</p>
3636.

(0)Saxicolous Lichens grow on :

Answer» <p>Thelichensthat aregrowingon tree trunk and bark are called corticolouslichens, twig inhabiting ones are ramicolous, on wood - legnicolous, on rocks and boulders –saxicolous(epilithic), on moss - muscicolous, on soil - terricolous and on evergreen leaves – foliicolous (epiphyllous</p> <p>Asaxicolous lichenis alichenthatgrowson rock.</p> <p>Surface containing moisture</p>
3637.

Two insects that find naturdl fibres tasty:

Answer» <p>Ans :- ButterfliesandMoths.</p><p>BeesandWasps. </p>
3638.

s ItS fialu10. Name any two gaseous pollutants which cause acid rain.

Answer» <p>The main chemicals in air pollution that create acid rain are sulfur dioxide (SO2) and nitrogen (NOx). Acid rain usually forms high in the clouds where sulfur dioxide and nitrogen oxides react withwater, oxygen, and oxidants</p> <p>thanx</p>
3639.

\begin{array} { l } { \text { Simplify combining like terms: } } \\ { \text { (i) } 21 b - 32 + 7 b - 20 b } \end{array}

Answer»
3640.

Find the radius of a circle whose area is 1386 cm2.

Answer»
3641.

Which of the following gases is not presentin coal gas?(A) Hydrogen(B) NitrogenC) Methane

Answer» <p>Hydrogen ,and Methane are the gases present in Coal gas formed by destructive distillation .but Nitrogen is present only in air not in Coal gas.</p>
3642.

The ratio of speeds of diffusion of two gases A and B is 1:4. If the ratio of their masses present in the mixture is2:3, compute the ratio of their mole fractionsQ8.

Answer»
3643.

2/.now does nun mon take place in paramecium ?fij Describe the working of human's heart.

Answer» <p>The right side of yourheartreceives oxygen-poor blood from your veins and pumps it to your lungs, where it picks up oxygen and gets rid of carbon dioxide. The left side of yourheartreceives oxygen-rich blood from your lungs and pumps it through your arteries to the rest of your body.</p>
3644.

2. How can you fight terrorism?

Answer» <p>In order to prevent entering or leaving the country for terrorist activities, border (so-called “green border”, as well as border crossing points) is properly controled in cooperation with the Ministry of Internal Affairs of Georgia. Visitors are interviewed. All border crossing points are equipped with detectors of nuclear and radioactive materials/substances. Employees of border management authorities are regularly trained, inter alia, in the detection of forged travel documents.</p>
3645.

A runing man has half the kinetic energy of that of a boy ofhalf of his mass. The man speeds up by 1m/s so as to havesame K.E. as that of the boy. The original speed of the manwill be[Pb. PMT 2001]

Answer»
3646.

running man has half the kinetic energy of that of a boy ofhalf of his mass. The man speeds up by 1m/s so as to havesame K.E. as that of the boy. The original speed of the manwill be[Pb. PMT 2001](a) V2m/s(b) (2-1)m/s(d) m/s(/2-1ms

Answer»
3647.

21. State modern periodic law. What is the cause of periodicity in the propertiesof elements? Explain it with the help of an example.

Answer» <p>According to the Modern Periodic Law, the properties of the elements are repeated after certain regular intervals when these elements are arranged in order of their increasing atomic numbers. Further an examination of the electronic configuration of the various elements clearly indicates that with a gradual increase in atomic number there occurs a repetition of similar outer electronic configurations after certain regular intervals. By correlating these two observations, we can say that, the cause of periodicity in properties is the repetition of similar outer electronic configurations at certain regular intervals.WHEN we go across the period the no. of shells remains same but the number of electrons keep increasing .this result in more force of attraction among electrons and protons and thus atomic size decreases.but when we go down the group, the no. of valence electrons remains same but the no. of shells kkep increasing.this result in less force of attraction.therefore, atomic size increases.</p>
3648.

. 2. Explain why particles of a colloidal solution do not settledown when it left undisturbed, while in the case of asuspension they do.

Answer» <p>Theparticles arespread evenly throughout the dispersion medium, whichcanbe a solid, liquid, or gas. Because the dispersedparticlesof acolloid are notas large as those of asuspension, theydo not settle outupon standing</p> <p>please send short and simple answer</p>
3649.

25.When these two magnets are kept close as shown, there will be?N SS Na) Rotationb) No change Repulsid) Attraction

Answer» <p>since like poles repel</p><p>option (c) is correct</p>
3650.

is a small texrmation of your online activity and reports back to the host.t file stored on your computer's browser directory that collects thea. Registerb. Cookiec. BrowserA.egal right granted by law to the creator for his original worka. Copyrightb. Patentc. Trademarki hprocess of transforming data into an unreadable code.4.a. Encodingtrusted person or organisation.a. Phishingb. Encryptionc. DecryptionIs an act of sending an e-malil to a user misleading him to believe that it is from ab. Spammingc. Hacking

Answer» <p>2. Cookie3.Patent4.Encryption5.Spamming</p>