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.

2901.

What are chromosomes? Why are theypresent in cells?

Answer» <p>Chromosomes are thread-like structures located inside thenucleusof animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring,DNAcontains the specific instructions that make each type of living creature unique.</p>
2902.

3.What is the water cycle?

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2903.

9. Explain the formation of water cycle?

Answer» <p>TheWater Cycle. ... Thewater cycledescribes howwaterevaporates from the surface of the earth, rises into the atmosphere, cools and condenses into rain or snow in clouds, and falls again to the surface as precipitation.</p> <p>Water goes through different processes in the environment, and transforms through variousstates during these phenomena. This cyclic process through which water passes through its different states, in the environment, is called the water cycle.Water cycle consists of four steps, i.e.evaporation, condensation, precipitation and flowing back of water to the oceans.</p> <p>water bones from different places during phenomenon there are four steps they are evaporation, condensation, precipitation and rain again coming</p> <p>water cycle means the revolution of water in like these ways ex: water vapour to clouds and then it comes like rain</p>
2904.

4. What is lymph? Describe its function.

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2905.

1.Make life cycle of butterfly or frog with the help of clay on cardboard (A-4size) Label it and wrap it with clear plastic sheetnf

Answer» <p>This activity is to be done by you.</p>
2906.

Which area is least prone to earthquake

Answer» <p>The most earthquake prone location is Otira, near Arthurs Pass.</p>
2907.

What are sex hormones? W

Answer» <p> The hormones which help and control the formation of secondary sexual characters are called sex hormones. </p> <p>male: xyfemale: xx ,hormones which help and control the formation of secondary sexual characters</p> <p>the Harmon's which are help in formation of secondary sexual characters are called sex Harmon's </p> <p>hormones which help to control feeling </p> <p>Hormones which constitutes the secondary sexual characters are called SEX HORMONES . These hormones work instantly when they are released in blood stream . They are responsible for the sexual development of body .</p>
2908.

1. दी गई आकृति में PS, ZQPR का समद्विभाजक है। सिद्ध_ _QS_PQकीजिए कि है। sR PR

Answer» <p>it is wrong answer ....</p>
2909.

2.Plants which do not produce seeds can be grown by vegetative methods.

Answer» <p>Not every plant grows from a seed. Some plants, like ferns and mosses, grow from spores. Other plants use asexual vegetative reproduction and grow new plants from rhizomes or tubers. We can also use techniques like grafting or take cuttings to make new plants</p> <p>Vegetative reproduction(also known asvegetative propagation,vegetative multiplicationorvegetative cloning) is any form ofasexual reproductionoccurring in plants in which a new plant grows from a fragment of the parent plant or grows from a specialized reproductive structure</p> <p>Not every plant grows from a seed. Some plants, like ferns and mosses, grow from spores. Other plants use asexual vegetative reproduction and grow new plants from rhizomes or tubers. We can also use techniques like grafting or take cuttings to make new plants.</p>
2910.

ohm's low( from first principle method)

Answer» <p>OHM’S LAW</p><p>Statement:– Ohm’s law states that the current (I) flowing through a conductor is directly proportional to the potential difference (V) across the ends of the conductor,provided physical conditions of the conductors such as temperature,mechanical strain etc. Are kept constant i.e. IαV</p><p>Or VαI or V= RI</p><p>Or V/I=R=a constant</p><p>Where R is known as resistance of the conductor . It depends upon the length ,shape and the nature of the material of the conductor. The variation between potential difference (V) and current (I) through a conductor is a straight line.</p><p>Deduction of Ohm’s Law:</p><p>As drift velocity is given by Vd=eEt/m</p><p>But Electric field across the conductor of length l is</p><p>E=V/l</p><p>Thus Vd=e V/ml</p><p>Also, I=Anevd</p><p>By putting value of vd in the equation of I (equation 1 of relation of the current and drift velocity),we get</p><p>I=Ane(eV/ml)=(Ane2/ml)V</p><p>Or V/I=ml/Ane2=R</p><p>Where R is a constant for a given conductor. It is known as the resistance of the conductor.</p><p>Thus V=RI</p><p>This is Ohm’s law.</p>
2911.

016: What is yarn?

Answer» <p>thread used for knitting usually wool and cotton</p> <p>thread (usually of wool or cotton) that has been prepared (spun) and is used for knitting, etc.</p> <p>thread used for knitting usually wool and cotton </p> <p>A thread which is made up of usually wool and cotton that has been prepared and is used for knitting.</p> <p>thread used for knitting usually wool and cotton</p> <p>thread used for knitting, sewing or weaving</p> <p>wool and cotton is the correct answer of the given question</p> <p>yarn i</p> <p>thread used for knitting usually wool and cotton.</p> <p>yarn is a medium used to make fabrics and is further made up of fibres.</p> <p>yarns are type of long stories about imaginary things or events</p> <p>Yarnis a long continuous length of interlockedfibres, suitable for use in the production oftextiles,sewing,crocheting,knitting,weaving,embroidery, orropemaking.[1]Threadis a type of yarn intended for sewing by hand ormachine. Modern manufactured sewing threads may be finished withwaxor other lubricants to withstand the stresses involved in sewing.[2]Embroidery threadsare yarns specifically designed for needlework.</p> <p>thread (usually of wool cotton) that has been prepared (spun) and is used for kinniting, etc. </p>
2912.

Explain the process of making yarn from-fibre.

Answer» <p>The thin strands are called as yarns which are made from fibre. Spinning is the process of making yarn. The process where the cotton wool are drawn out and being twisted. This process brings all the fibre together to form a yarn.</p> <p>The thin strands are called as yarnswhich are made fromfibres. Spinning isthe process of making yarnThe processwhere the cotton wool are drawn out and being twisted.this processbrings all thefibre together to form ayarns.</p> <p>The thin strands are called as yarns which are made from fibre. Spinning is the process of making yarn. The process where the cotton wool are drawn out and being twisted. This process brings all the fibre together to form a yarn.</p>
2913.

5. What is weaving?

Answer»
2914.

2.Explain the process of weaving.

Answer» <p>The process of arranging two sets of yarn together to make a fabric is called weaving.The big reels of yarn are called bobbins.These bobbins are used for weaving the cloth.The cloth is woven on looms.After that they bleached and dyed to give a finish.</p>
2915.

Il.Answer the following questions in brief:1.Write a note on man-made fibres.

Answer» <p>Man-made fibres are to be distinguished from natural fibressuchas silk, cotton, and wool. Natural fibres also consist of polymers (in this case, biologically produced compoundssuch as cellulose and protein), but they emerge from the textile manufacturing process in a relatively unaltered state.</p> <p>I want of class seven</p>
2916.

Write a brief note on Allotropy with suitable example

Answer» <p>We know that matter can exist in three physical states, that is, liquid and gas. Water exists in all three states. But water cannot exist in different forms in the same state. Some elements like sulphur, phosphorus and carbon do so. These elements can exist in more than one form in the same physical state having the same chemical properties but different physical properties. These different forms are called allotropes. Sulphur has three allotropic forms – rhombic, monoclinic and plastic sulphur. Phosphorus has two – yellow phosphorus and red phosphorus. Carbon has three allotropes – diamond, graphite and amorphous carbon.</p>
2917.

Nama the praces in which

Answer»
2918.

(a) Marking gauge

Answer» <p>A marking gauge, also known as a scratch gauge, is used in woodworking and metalworking to mark out lines for cutting or other operations.</p>
2919.

ส)The average weather taken over a long time is called

Answer» <p>Theaverage weather taken over a long time is called climate.</p>
2920.

matic diagram of a circuit consisting of a battery of threeach, a 5 Ω resistor, an 8 Ω resistor, and a 12 Ω resistor, anda plug key, all connected in serlesedraw the circuit of guestion 1, putting in an ammeter to measurethe currentotential difference across the 12 Ω resistor. What would be the readingsin the ammeter and the voltmeter?through the resistors and a voltmeter to measure the

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2921.

2 State Modern Periodic Law

Answer» <p>Themodern periodic law statesthat physical and chemical properties of the elements are theperiodicfunction of the atomic numbers. The various elements with the similar properties repeat after certain regular intervals. This repetition occurs when you arrange the elements in order of their increasing atomic numbers.</p>
2922.

19. a) State Modern periodic law

Answer» <p>All elements can be arranged in a table in the form of their increasing atomic numbers. Atomic numbers can be used in order to classify them and study about their characteristic properties.</p>
2923.

. What is a saturated solution? How will you increase the solubility of a substance in wateriScience

Answer» <p>Ans :- The termsaturated solutionis used in chemistry to define asolutionin which no more solute can be dissolved in the solvent. It is understood thatsaturationof thesolutionhas been achieved when any additional substance that is added results in a solid precipitate or is let off as a gas.</p><p>For many solids dissolved in liquidwater, thesolubility increaseswith temperature. Theincreasein kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions.</p>
2924.

iii) wlte the uIn a sugar andWhat is water ?salt solution what is the name given to sugar or salt ?.Ove and Goni is 'R've Who can donata

Answer» <p>sugar and salt are the solute.water is the solvent.</p>
2925.

Describe briefly the "cuttings method" of reproduction in

Answer» <p>A plant cutting is a piece of a plant that is used in horticulture for vegetative (asexual) propagation. If the conditions are suitable, the plant piece will begin to grow as a new plant independent of the parent, a process known as striking. A stem cutting produces new roots, and a root cutting produces new stems.</p>
2926.

'एक इलेक्ट्रिक बल्ब को 22 ४४ और 220 / के रूप में रेट किया गया है। इस बल्ब का प्रतिरोध बताएं।220 Ohms2200 Ohms22 Ohms2000 Ohms

Answer» <p>2200 ohm</p>
2927.

Answer in One Word or a Few Words1. Give the burning characteristics of nylon.2. Sense of touch is- estimate of temperature.3. The product of photosynthesis is carbohydrate. (True/False)4. Tongue_helps to detect different tastes of food with the help of taste buds.

Answer» <p>hi hgjbdkf fi vn fjf gk djf</p>
2928.

what is standard taste of water ?

Answer» <p>Water has no taste..</p>
2929.

Two identical resistors of 20 Ω each are connected in parallel. This combination, in turn,is connected to a 10 Ω resistor. The equivalent resistance of the combination will be:

Answer» <p>the formula for parallel connection is</p><p>(1/R1)+(1/R2)=1/Reqhere R1 = 20 OhmsR2=20ohmsso, 1/Req=(1/20)+(1/20) =2/20 =1/10so, Req=10 ohms.this is you are interested is in series with a 10 ohm resistor.so Rtot=10+10=20 ohms</p>
2930.

7. With which process are the following ancient structures associated ?Kulhs, Eris, Surangams, Kattas, Pynes

Answer» <p>musu Basu sa sing su an pe lo cha Chan lu</p> <p>Ab ye kya bola bhi hindi me bol ya speak in english brother</p> <p>Thnks gajendra</p> <p>Sry chandraja</p> <p>By mistake i have written wrong name</p>
2931.

is required to carry various activities by organisn

Answer» <p>One of the option could be Energy.</p>
2932.

V. ActivityMake a chart describing various efforts by the government to promote gender justice.

Answer» <p>Beti Bachao, Beti Padhao, meant for uplifting women in the sphere of women’s education</p><p>Sukanya Samriddhi Account, meant to help families’ save for their daughters</p><p>One Stop Center scheme meant to offer easy access for women suffering from domestic abuse or violence, and needing support</p><p>Pradhan Mantri Ujjwala Yojana meant to offer free LPG connections to women living below poverty line</p><p>Mahila Haat meant to support women entrepreneurs and women self help groups</p><p>Rajiv Gandhi National Crèche Scheme for Children of Working Mothers meant to provide affordable daycare services to working women</p><p>Maternity Benefit Scheme meant for pregnant women and lactating mothers</p>
2933.

F4. A train has to negotiate a curve of radius 400 m. By how much height should the outer rail be raisedwith respect to inner rail for a speed of 48 km/hr ? The distance between the rails is 1 m

Answer»
2934.

Trees which are buried under the earth are turned into _____

Answer» <p>Trees which are buried under the earth turned into coal.</p> <p>fossil fuels is the correct answer</p> <p>fossil fuels is the correct answer of the given question</p> <p>fossil fuels is the correct answer </p> <p>coal and fossil fuels are the right answer </p> <p>fossil fuel and coal are buried under earth.</p> <p>tree which are buried under the earth are turned into coal</p> <p>fossil fuels and coals</p> <p>fossil fuels is the correct answer</p> <p>the trees convert in fossil fuel</p> <p>trees which are buried under the earth are turned into coal</p> <p>change in to fossil fossils fuel</p>
2935.

8. It contains the poisons c-amanitin andphalloidin, which can cause kidney and liverfailure and kill a person within six hours ofeating it.hemlockdesert rose

Answer» <p>hemlock is very danger to humen body. </p>
2936.

60*(5*285)

Answer» <p>855,00 is the correct answer</p> <p>855,00 is the correct answer </p> <p>85500 is the answer of the following</p> <p>When we multiply 285×60×5 we'll get the answer as 85500</p> <p>85500 is the ans.....</p>
2937.

1. At a height 0.4 m from the ground, the velocity of a projectile in vector form is(612jm/s. The angle of projection is(a) 45°(b) 60°nroiectile is maximum, the height H reached by the prbjectiels(c) 30°

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2938.

2.When the range 'R' of a projectile is maximum, the height H reached by the(b) 4Rmax(c) 8Rmazdy

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2939.

10-20 Woras.How many states and union territories does!India have?

Answer» <p>There are29 statesand seven union territories in India. Each state and union territory of India has an administrative, legislative and judicial capital</p>
2940.

ray diagram with convex lens when object at beyond 2f and between f and 2f

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2941.

sinEstablish, tin

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2942.

How is a fish adapted to live in water?Why do animals migrate ? Give two esamples of animal

Answer» <p>Fishhaveadaptedto their environment through the evolution of gills, swim bladders and fins. Gills allowfishto absorb oxygen from thewater, swim bladders allowfishto maintain an appropriate level of buoyancy and fins allow thefishto move through thewater.</p>
2943.

. Find four numbers in AP whose sum is 28 and the sum of whose squaneis 216.. Divide 2

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2944.

2.A piece of twig takes a longer time to catch a fir than a piece of paper. Why?

Answer» <p>The ignition point of the twig is greater therefore the time taken to catch fire is longer... We must also consider the water vapour present in the atmosphere and also dirt should be considered.</p>
2945.

tile the pT1t aExercisesQ. 1. List conditions under which pcombustion can takè place.Ans. Conditions under whcan take plact

Answer» <p>Conditions necessary for combustion are :</p><p>i) Presence of combustible substance</p><p>ii) Attainment of ignition temperature</p><p>iii) Proper supply of air to provide oxygen</p><p>Hit like if you find it useful!</p>
2946.

236

Answer» <p>236 is composite number 236= 2×2×59</p>
2947.

1) Water is colourless, odourless and

Answer» <p>Water is colourless, odourless and tasteless.</p>
2948.

RADE VIVACATION HOMEWnswer the following:How is butter taken out from milk or curd?

Answer» <p>This cream along with themilkis used for makingyogurt(we call itcurd) and when this is churned first with some warm water one starts seeing floatingbutteron the top. To make this layer ofbuttercome together cold water or a few ice cubes are added to the churned buttermilk.Outcomes the ball ofbutter.</p> <p>This cream along with themilkis used for makingyogurt(we call itcurd) and when this is churned first with some warm water one starts seeing floatingbutteron the top. To make this layer ofbuttercome together cold water or a few ice cubes are added to the churned buttermilk.Outcomes the ball ofbutter</p> <p>butter from milk as well as from curd. ... You can extract butter from the milk and also from curd made from left-over milk.</p> <p>First, the cream is separated from fresh wholemilk. The cream is then churned by shaking or beating it vigorously until it thickens. The remaining liquid (buttermilk) isremoved. The clusteredbutteris washed and formed into its solid shape a</p>
2949.

what is meant by spore formation

Answer» <p>A mode of reproduction resembling multiple fission, common among Protozoa, in which the organism breaks up into a number of pieces, or spores, each of which eventually develops into an organism like the parent form. Theformationof reproductive cells orspores, as in the growth of bacilli.</p>
2950.

Sounds travels fast in ........

Answer» <p>Sound travelsthefastestin solids like iron,steel etc.Soundis slower in liquids andslowestin gases. That implies thatsound travels fastin a densermediumthat is more the density of amediummore is the speed ofsoundin thatmedium.</p> <p>sound travel fast in solids</p>