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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.
| 58601. |
Give one function of pepsin and mucus each. |
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Answer» Pepsin helps in digestion of protein and mucus protects the inner lining of stomach from HCl acid Mucus protects the inner wall of stomatch from the action of acid. |
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| 58602. |
what will happen to a plant if its xylem is removed |
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Answer» In this situation plants will die immediately The transportation of water is stopped so the plant will die No transportation of water nd minerals would occur.. |
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| 58603. |
Why do we classify elements ???? |
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Answer» To compare and study characteristics of diff elements. To make their study easy nd to study them more conveniently.. Fr better understanding Convenient study about their phy and chem properties |
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| 58604. |
What are Peristaltic movement ? |
| Answer» The rhythmic contraction and relaxation of the oesophagus is known as the peristaltic movement...... | |
| 58605. |
How do Leishmania reproduce ? |
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Answer» Binary fission By asexual method Leishmania se jaakr pucho!!! |
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| 58606. |
What is ph value of saliva before and after meal |
| Answer» After meal 5.5 | |
| 58607. |
What is significance of reflex actions |
| Answer» To detect the signal or output and then immediate response to the signal | |
| 58608. |
Testostrone is released in males |
| Answer» As testosterone is a hormone released by testis for the development and changes in the secondary sexual characters of males. Eg facial hair, cracking voice,etc. | |
| 58609. |
How to induce current in a coil |
| Answer» By providing magnetic fieldBy provinding motion Or By electro magnetic induction | |
| 58610. |
Why does milkman a pinch of baking soda in fresh milk? |
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Answer» It neutralizes the excess of lactic acid so that the milk may not turn into curd or paneer As baking soda is basic in nature it neutralise the excess acid produced in milk |
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| 58611. |
List six specific characteristics of sexual reproduction |
| Answer» 1. Not rapidly produce 2. Biparent reproduction3.variation are occur in this type of reproduction 4. Fertilization occurs5. Biastogenic reproduction 6. Ex: higher animals and plants | |
| 58612. |
State Fleming\'s left ? hand ✋ rule |
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Answer» Stretch the fore-finger,thumb and middle finger of your left hand such That perpendicular to it.fore-finger shiws the direction of magnetic field, middle finger shows the direction of current and thumb shows the direction of force. Any body knows |
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| 58613. |
Why acetic acid is not a base it has -OH negative ion in it (CH3COOH) |
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| 58614. |
Explain sexual reproduction |
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Answer» In this male gametes(sperm)and female gamete(ovum)fuse with each other to form embryo, thus inside uterus with the help of placenta the embryo is nourished, after this ot turns into foetus in which parts of the individual are visisble,thus after 9 months the individual is fully developed and born??bhai pura shuru se lekar end tak ki ramayan likh di *** = sexual reproduction |
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| 58615. |
How do plants respond to external stimuli? |
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Answer» Yaar detail me bataa na With the help of plant harmones. |
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| 58616. |
What is oxidation of alcohol??? |
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Answer» Ethanol is oxidised to produce ethanal by removing two hydrogen atoms. Ethanal is then oxidised to produce ethanoic acid, by adding an oxygen atom.......... Yrrr carbon wala chapter nhi aata |
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| 58617. |
Why saturated hydrocarbons are less reactive than unsaturated hydrocarbons and vice versa? |
| Answer» Unsaturated hydrocarbons are more reactive due to the presence of C = C and C = C bonds which are weaker than the single bond in saturated hydrocarbons. These double and triple bonds are the reactive sites in the unsaturated hydrocarbons which easily give addition reactions. | |
| 58618. |
how to star twinkle |
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Answer» Stars r a point source of light. When light travels through the atmosphere, it passes through different air densities. Sometimes atmosphere refracts more light causing brightening effect nd sometimes it refracts less light causing dimming effect. This continuous brighter and dimming effect make the stars to twinkle. Because of the atmosphere refraction... |
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| 58619. |
Activity 2.3 |
| Answer» This is used for testing the presence of hydrogen gas and it is known as soap bubles test | |
| 58620. |
What is electirc fuse?Explain characteristics with two examples. |
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Answer» Examples like tin, lead wire. A fuse is a wire which breaks or melts when current xceeds its safe value. |
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| 58621. |
on what principle dynamo works? |
| Answer» Electromagnetic induction | |
| 58622. |
Marks distribution chapter wise |
| Answer» | |
| 58623. |
List four factors responsible for corrosion of iron. |
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Answer» Following are the four factors responsible for corrosion of iron :1. When iron comes in contact with moist air.2. Presence of water.3. When no paint or warnish applied to the iron.4. If it is not cleaned regularly then it corrodes. Water Oxygen contact Highly reactive metals corrode fastly Acid rain Presence of moisture |
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| 58624. |
Human respirator system |
| Answer» Respiration is one of the metabolic processes which play an essential role in all living organisms. When we breathe, we inhale oxygen and exhale carbon dioxide. The so-called exchange of gases is necessary for respiration and which can be considered as a chemical process.Every organism, from an individual bacteria cell to a mighty blue whale, undergoes respiration. | |
| 58625. |
Explain DNA copying |
| Answer» DNA (Deoxyribonucleic acid) copying is an essential part of reproduction as it passes genetic information from parents to offspring. ... The reproducing cells produce a copy of their DNA through some chemical reactions and result in two copies of DNA. | |
| 58626. |
Why acquired traits doesn\'t transmitted to the future generations |
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Answer» This is because only those trait can be transmitt which makes any change in DNA composition and as acquired trait does not make any difference so it cant not be transmitted Because these do not affect the dna of the organism hence the genes remain unaffected so these traits are not tranferred |
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| 58627. |
What is watershed management ? Explain it . |
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Answer» Soil and water conservation by scietific method Watershed management is a term use to describe the process of implementing land use practices and water management practices to protect and improve quality of the water and other natural resources within a watershed by managing the use of those land and water resource in a comprehensive manner Okayy Watershed management is the study of the relevant characteristics of a watershed aimed at the sustainable distribution of its resources and the process of creating and implementing plans, programs, and projects to sustain and enhance watershed functions that affect the plant, animal, and human communities within the watershed boundary. Muije toh koi answer btaa do plz ... Plz tell me answer ... Very Urgent ... |
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| 58628. |
Importance of vegetative propagation? |
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Answer» 1) Plants does not require too much attention during its initial stages. 2) seedless plants can be produced. 3) We can get the desired characterstics of parents in their progeny.4) too many plants can be produced from single plant.5) it is a cheap technique 1. Plants that do not produce seeds can reproduce this way. 2. Since only one plant is required, pollination is not needed. 3. It is a fast method of reproduction. |
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| 58629. |
What is biogas plant ? |
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Answer» Mixing tank : Cow dung and water is mixed together to form slurry which is fed into the mixing tank.Digester : The slurry is passed on to the digester which is a completely sealed chamber with no oxygen. Here anaerobic decomposition of slurry takes place.Gas tank: The anaerobic decomposition releases gases such as methane, carbon-di-oxide, hydrogen and hydrogen sulphide which are collected in the Gas tank and drawn out through the gas outlet Biogas can be produced from raw materials such as agriculture wast , manner, sewage,etc. It is renewable source of energy. The arrengement of producing bio gas is known as biogas plant |
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| 58630. |
Dihybrid cross kya hota hai????? |
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Answer» It is a type of cross in which two varieties of pea plants having two contrasting characters are crossed is known as dihybrid cross When cross is made between two pair of contrastic trait, it is known to be dihybrid cross. When you cross between two traits like the round and yellow peas and wrinkled and green peas so there are two traits i.e. shape and colour. Sorry.......yrrr or koi answer Crossing by taking two trait Are sabhi kha chale gaye koi to answer bataoo |
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| 58631. |
What is law of dominant |
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Answer» According to law of dominance -when two homozygous individuals with one or more set of contrasting characters are crossed the characteristic which appear in F1 hybrid are dominant and those which do not appear in F1 generation are recessive Out of two allels for a trait one is dominant and other recessive. The dominant allel masks the recessive. This was later named as law of dominance Thanks both of you She\'s right Law of dominance states that out of the two trait, one trait will be dominant nd one will be recessive.. The dominant trait would show its character even in the presence of alternative gene.. Dominant is that which have more power than recessive |
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| 58632. |
What are the advantages of sexual reproduction over asewual |
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Answer» Thanks yogita Advantages of sexual reproduction:1. In sexual reproduction, more variations are produced. Thus, it ensures survival of species in a population.2. The new formed individual has characteristics of both the parents.3. Variations are more viable in sexual mode than in asexual one. This is because in asexual reproduction, DNA has to function inside the inherited cellular apparatus. Sexual reproduction involves fusion of male gamete female gamete which lead to variations. Nd variations increases the chances of survival.. Hmm..... Thanks It provides survival benefit to offsprings Asexual |
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| 58633. |
Write the number of covalent bonds in a molecule of butane C4H10 |
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Answer» 13 13 |
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| 58634. |
Give one point of similarity amoung cuscuta,ticks and leeches |
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Answer» All are parasites The similarity among cuscuta, ticks and leeches is that these are parasites They are parasites |
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| 58635. |
What is genetic drift?? ? |
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Answer» variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce. variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce. |
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| 58636. |
Sources of energy se bhi important bata do koi .....plss |
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Answer» solar energy..hydro energy..wind energy...are much imp Or kuch h isme ky Energy from sea Solar cells Characteristics of good fuel.. Advantages of biogs.. Advantage nd disadvantages of solar energy Thermal,hydro, ki energy convert hi jaruri h |
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| 58637. |
refraction of light through prism |
| Answer» Tadaaa | |
| 58638. |
How to calculate range of a instrument |
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| 58639. |
Tell the situation when receptors do not work |
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Answer» If receptors does not work than control and cordination does not takes place because our brain and spinal cord will not be able to get the information about the stimulus and cannot set any result against that. For example if our phonoreceptors does not work than no electrical impluses will send by the receptor to brain through the sensory neuron and brain will not be able to undersand what the voice mean and we will not be able to hear anything. Is nhi I* When the nerve impulses come in small amount is think soo!!!!!! ?? let me think |
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| 58640. |
Concave mirror ma object distance positive ha negative hota ha |
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Answer» Lense and mirror dona ma Negative Negative Haa -ve |
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| 58641. |
what is a PH |
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Answer» Thanks pH can be simply defined as power of hydrogen ions of any solution pH is scale used to measure the concentration H+ iins in a solution. It has number marked from 0 to 14 where 0 to 6 is acidic 7 is neutral and 8 to 14 is basic. |
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| 58642. |
Why rainbow is seven in colour? |
| Answer» Because of dispersion of livht as white light is made up of seven colours | |
| 58643. |
Concentration of ore |
| Answer» Removal of impurities, such as soil, sand, stone, silicates, etc. from mined ore is known as Concentration of Ores.Ores which are mined often contain many impurities. These impurities are called gangue. First of all, concentration is done to remove impurities from ores. Concentration of ores is also known as enrichment of ores. Process of concentration depends upon physical and chemical properties of ores. Gravity separation, electromagnetic separation, froth flotation process, etc. are some examples of the processes which are applied for concentration of ores. | |
| 58644. |
precaution for overloading? |
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Answer» Ishit 1.Not connecting too many appliances in a single socket 2.Not operating many high power rating devices at same time .3.Using circuit breakers like fuse. MCB->miniature current breaker Fuse MCB Use of limited voltage devices To prevent overload use paticular no. Of devices at a time |
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| 58645. |
List the various steps of observing a slide under a microscope? Please response quickly!!!! |
| Answer» \tPlace the slide on the stage of the microscope.\tArrange the mirror to reflect maximum light to the slide.\tFocus the object under low power of the microscope.\tFocus the object under high power of the microscope. | |
| 58646. |
What is monarch |
| Answer» A person or thing that holds a dominant or superior position within its field, and is able to exercise a high degree of control or influence over others | |
| 58647. |
How do you extracts the metals from higher,middle, lower reactivity series? With example |
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Answer» Secondary SchoolChemistry 10 pointsExplain how the following metals are obtained from their compounds by reduction process also write the equationa) Metal X which is low in reactivity seriesb) Metal Y which is in the middle of the reactivity seriesc) Metal Z which is high in the reactivity seriesAsk for details Follow Report by Chandraharish 18.09.2015AnswersTHE BRAINLIEST ANSWER!MagnificentMagnificent Ambitious 1. metals low in reactivity series are obtained by the method of Heating Alone 2. metals in the middle of the reactivity series are obtained by either Roasting - sulphides are converted to oxides when heated in presence of oxygen or Calcination - carbonates are converted to oxides when heated in absence of oxygen3. Electrolytic refining Bro copy and past from where the answer is Long to type here....u can read ncerr....3rd ch...topic: extraction of minerals... |
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| 58648. |
How classification and evolution interlinked |
| Answer» Organisms differ in their form, structure and mode of living. Hence, based on their similarities they should be grouped. The grouping of related organisms helps us in studying their evolutionary relationships. Classification is the division of organisms on the basis of characteristics into groups and sub-groups. A characteristic may be a particular form or function.For example, classification of animals can be done based on some criteria.Criteria for classification: Animals are classified on the basis of different features.*Cellular or tissue level of body organisation.*Body symmetry.*Type of body cavity called as coelom.*Presence or absence of segmentation.*Presence or absence of a backbone.Evolution: It is the sequence of gradual changes over millions of years in which new species are produced. Classification of species is done by knowing the characteristics which evolved over a long period of time. | |
| 58649. |
What are isomars |
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Answer» Isomers are those which have same molecular Formula but have different structures Male Molecules with similar formula but different structures... |
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| 58650. |
Name the sodium compound used for softening hard watwr |
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Answer» Sodium carbonate decca hydrate Washing soda Waahing soda(Na2CO3•10H2O) Sodium carbonate deca hydrate Washing soda |
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