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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.
| 54951. |
Why are budding,fragmentationand regeneration all considered as asexual type of reproduction |
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Answer» Because gamete formation does not happen during this mode of reproduction and a single parent carries out the process of reproduction... Because they are unicellular organisams and can only reproduce through asexual mode of reproduction |
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| 54952. |
What is hormone disorder? |
| Answer» Harmonal disorder is tht problem which is caused due to inadequate release of hormones or its abence in place of presence | |
| 54953. |
How is mercury extracted from cinnabar |
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Answer» Simply heating it in presence of oxygen By roasting |
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| 54954. |
wht happen when two pollen tubes reach the ovary?? who one give its correct answer will be a genius. |
| Answer» Plant will reproduce and it will foam ovules. | |
| 54955. |
Chemical name of blue virtual |
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Answer» Yes Copper sulphate Cuso4.5H2o |
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| 54956. |
Why the magnetic field produce ???? |
| Answer» Because of the stored energy in the magnet it is able to apply force on other objects in contact with it. So therefore magnetic field is produced | |
| 54957. |
What is the role aqueous humour in human eye ? |
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Answer» The aqueous humour play an essential role in the health of our eye.As well as nourishing the cornea and lens by supplying the nutrition. Such as amino acids and gluocose, the aquous humour Wil maintain intraocular pressure transpot vitamin C in the front segment to act as an antioxidant agent. It give the shape of eye and nourish cornea and lens |
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| 54958. |
Oxidising agent |
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Answer» A oxidising agent is a substance that undergoes through oxidation, to oxidise its other species An oxidizing agent is a substance that has ability to oxidise other substance.In other words to cause them to lose electrons.Some common oxidizing agents are oxygen,hydrogen peroxide and halogens. |
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| 54959. |
Why we ear ionished salt |
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Answer» Ooh thats right Iodine is necessary for the thyroid gland to make thyroxine harmon .Thyroxin regulates protein and fat metabolism in the body so as to provide the best balance for growth. Iodine is essential for the synthesis of thyroxine |
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| 54960. |
Which group of element will form an acidic oxides. |
| Answer» 16th and 17th group. | |
| 54961. |
What is phisics |
| Answer» Physics is the study of all the physical phenomena happening around us. It studies as well as formulates the laws of nature. | |
| 54962. |
What is the genotypic ratio for dihybrid cross in case of mendels experiment? |
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Answer» 1:2:2:4:1:2:1:2:1 No,this is the phenotypic ratio....tell me the genotypic ratio 9:3:3:1 |
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| 54963. |
Tabulate the difference between zygite and embryo in 5 points. |
| Answer» Zygote:1.zygote is formed by the fusion of male and female gamates2. Ajay Court is the beginning of the formation of a baby.3. Zygote is a single cell it is smaller than a full stop.Embryo:1. An embryo is formed by the repeated cell division of a zygote2. An embryo is an Unborn baby in the uterus in the early stages of development3. An embryo is a multicellular. The body features of growing baby in the embryo and not much developed | |
| 54964. |
What is the difference betwee character and a trait (with eg) |
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Answer» A character may be defined as the distinctive feature of an individual which can be passed on from one generation to another while a trait may be defined as different forms of that characteristic feature . For example: Color of the eye is a character while blue or black color of the eye is a trait. Similarly, plant height is a character in pea plants but tallness and dwarfness is a trait. Character is a heritable expressed attribute of an organism. Whereas, a trait is a heritable variant of a character. An example would be a phenotypical expression of eye colour would be a trait of the character coloured iris in the eye. |
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| 54965. |
What is atmospheric redraction |
| Answer» ATMOSPHERIC REFRACTION:*The refraction of light by the earth\'s atmosphere is called atmospheric refraction. | |
| 54966. |
Why wheat is biodegradable waste |
| Answer» | |
| 54967. |
What is oxidised |
| Answer» The substance which gains oxygen is said to be oxidized. | |
| 54968. |
What is reduced |
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Answer» Oxidation means controlled combustions. For example, when ethanol is heated with alkaline potassium permanganate solutions of acidified potassium dichromate solutions, it gets oxidised to etanoic acid. The substance which reduces oxygen or gains hydrogen is said to be reduced. |
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| 54969. |
Rusting of iron with help of diagram |
| Answer» RUSTING OF IRON :*Rusting is a slow process of oxidation of iron. In presence of air and moisture to form reddish brown hydrated iron. *The chemical composition of rust is - Fe2O3.xH2OCONDITIONS NECESSARY FOR RUSTING :*presence of air or oxygen *presence of water or moisture *presence of reactive gases such as CO2, SO2 , etc. PREVENTION FROM RUSTING :*Iron is protected by coating it with a thin layer of zinc which is more electropositive than iron. The process of coating of iron with layer of zinc is called GALVANISATION | |
| 54970. |
What ia reducing agent |
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Answer» A substance which gives hydrogen and gains oxygen are known as resucing agent. A substance which remove oxygen and add hydrogen in any compound |
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| 54971. |
What is Oxidise agent |
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Answer» A substance which gives oxygen and gains hydrogen are said to be oxidise/oxidising agent. A substance which remove hydrogen and add oxygen in compound |
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| 54972. |
What reactant |
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Answer» The original substance which undergo together and reacts together are reactant. Reactant always comes on LHS. the substance udergo a chemical reaction |
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| 54973. |
Mention the role of microorgunism like bacteri and fungi in the ecosystem |
| Answer» Microorganisms such as bacteria and algae are considered to be natural cleansing agents as they decompose various biodegradable wastes into simpler substances. When any organism dies, it is eventually eaten by detrivores (like vultures, worms and crabs) and broken down by decomposers, mostly bacteria and fungi. These microorganisms break down the dead remains and waste products of plants and animals. They are the decomposers as they break-down the complex organic substances into simple inorganic substances that go into the soil and release nutrients for recycling in to the food chain. | |
| 54974. |
What do you mean by inherited and acquired traits |
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Answer» Acquired traits: These are traits that are acquired by the organism as a result of external factors such as environmental conditions. These traits are gained after birth.These traits are not passed on to future generations.Example: language accentInherited traits: Traits that are controlled by genes and are passed on from the parent to progeny are called as inherited traits.Example: eye colour Inherited traits means the traits that tranfer from parents to their offspring. But acquired traits means the traits that do not transfer from the parent but it is developed by the enviroment |
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| 54975. |
Ovum |
| Answer» Ovum means the gametes that come from female ovary | |
| 54976. |
State the role of ciliary musceles in accomodation of eye. |
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Answer» To adjust the focal length of different distinct object The circular\xa0ciliary muscle\xa0fibers affect zonular fibers in the eye (fibers that suspend(increase or decrease focal length ) the lens in position during\xa0accommodation), enabling changes in lens shape for light focusing. |
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| 54977. |
Define parthenogenies? |
| Answer» Parthenogenesis is a form of reproduction in which an unfertilized egg develops into a new individual or it can also be defined as reproduction without fertilization.In parthenogenesis, the female gamete undergoes development to form new organisms without fertilization. It is a kind of asexual reproduction in which males do not play any role. | |
| 54978. |
What callus ?Name its colour |
| Answer» Sieve plate (oblique transverse perforated septa) is present between the two sieve tube elements at their end wall. It is porous. Materials are transported through these pores. Callose deposited on the radius of pores during dropping season (autumn) of leaves, to form a thick layer. This is called Callus pad.Sieve plate is protected by callus pad. It also prevented from bacterial infection and drought. | |
| 54979. |
Dfine 10% law |
| Answer» ↪It was put forth by lindeman In 1942 it is also termed as second law of thermodynamics law of Entropy .↪This law states that during transfer of energy from one trophic Level to the next level only about 10% energy is available to the higher trophic level and the remaining 90% is lost to respiration and heat . | |
| 54980. |
What is the work of electric motar |
| Answer» Electric motor: A motor is a device which converts electrical energy into mechanical energy.Principle of motor : A motor works on the principle that when a rectangular coil is placed in a magnetic field and current is passed through it. A force acts on the coil which rotates it continuously.\tWhen electric current is passed into the rectangular coil, this current produces a magnetic field around the coil.\tThe magnetic field of horse shoe-type magnet then interacts with the magnetic field of the coil and causes the coil to rotate continuously.\tIf ABCD is in horizontal position current from battery enters the coil through brush B1 , and commutator half ring C:. The current flows in the direction ABCD\tand leaves via ring and brush B2\tThe direction of current is from A to B, the direction of current is from C to D. The force on side AB of the coil is in the downward direction. Whereas the force on the side CD of the coil is in the upward direction. ABCD rotate in anti-clockwise direction.\tWhile rotating when the coil reaches vertical position then the brushes B1 and B2 will touch the gap between the commutator rings and current to the coil is cut off. But the coil does not stop rotating because it has already gained momentum.\tThe coil CD comes on the left side and AB comes to the right side. Again they come in contact with brush B1 Current direction is reversed.\tThe reversing of current in the coil is repeated after every half rotation due to which the coil continue to rotate as long as current from the batter is passed through it. The rotating shaft of electric motor can drive a large number of machines which are connected to it. | |
| 54981. |
Notes of chapter heredity and evolution |
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Answer» \tGenetics : Branch of science that deals with Heredity and variation.\tHeredity : It means the transmission of features/ characters/ traits from one generation to the next generation.\tVariation : The differences among the individuals of a species/population are called variations.It takes place due to environment changes,crossing over,and recombination of genes and mutation.\tGenotype:\xa0The complete set of genes in an organism’s genome is called genotype.\tPhenotype:\xa0The observable characters in an organism make the phenotype. Phenotype is a modified genotype and many of the phenotypes cannot be inherited.\tClones are those organisms which are exact copies of each other. Ples send |
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| 54982. |
What is recessive and receptor |
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| 54983. |
How organisms exact copies of themselves |
| Answer» \tIf organisms reproduce asexually, then there is limited variation, and organisms can create exact copies of themselves.\tHowever, in case of sexual reproduction, there are a lot of variations.\tDue to this, exact copies of an organism are never created.\xa0 | |
| 54984. |
How does the creation of variations in species promote survival? |
| Answer» All the variations in the species do not have equal chances of survival in the environment. The survival of the variations depends upon the nature of variation. Different individuals have different chances. Selection of variants by environmental factors forms the basis for evolutionary processes.These variations may lead to increased survival advantages of the individuals due to positive adoption of traits or may merely contribute to the genetic drift. | |
| 54985. |
What happen when a ray of light falls normally on thr surface of a plane mirror |
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Answer» 1.Incident ray is reflected back along the same path.2. Angle if incidence is zero and angle of reflection will be zero [according to laws of reflection] It reflects |
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| 54986. |
What is aperture of mirror?? |
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Answer» The diameter of reflecting surface of mirror is called its apperature It is the diameter of a sphrical mirror That portion of a mirror from which the reflection of light actually takes place is called the aperture of the mirror.In fact, aperture of a mirror represents the size of the mirror. |
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| 54987. |
What is reflection of light and name spherical mirrors |
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Answer» The bouncing back phenomenon of light in same medium is known as reflection of lightThe two spherical mirrors are -1)convex2)concave Thq prani garg When a Ray of light falls on a plane mirror it is reflected according to some laws called the laws of reflection of lightConcave and convex are the two types of spherical Mirrors |
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| 54988. |
Air mai light refrecte kyu hoti hai |
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Answer» To light ki speed constant q hai Because humare atmosphere mein dust particles water vapour vagahrah hote hai means jo humara atmosphere hai vo heterogeneous hai so jab light travel karti hai toh because of these particles vo refract karti and this phenomena is known as atmospheric refraction I hope it will help u? |
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| 54989. |
Kis book se board exam ka tyari kar sakte hai (10th) |
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Answer» First complete your Ncert text book then refer to Arihant All in one First of all complete NCERT and then refer All In One. Ncert and Vidhya question bank Your NCERT textbook se |
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| 54990. |
what is air layering |
| Answer» In this method, the branch of a plant is bent and covered with moist soil called mound. After a few days, roots arise from the underground portion. These separate from the parent plant and grow independently. An aerial branch is scraped and covered with moist mud which is then covered with plastic. New roots develop after sometime, after which the new part gets detached from the parent.Examples: Jasmine, strawberry, bougainvillea etc. | |
| 54991. |
give reason why copper is used to make a hot water tank and not still allow (an alloyof iron) |
| Answer» Because it is non corrosive in Nature It has high melting point | |
| 54992. |
write an equation to show the reaction between plaster of pairs and water |
| Answer» CaSo4×2H20{Heat-373K} = CaSo×1/2H20 | |
| 54993. |
What is organisms |
| Answer» Organisms are living creatures | |
| 54994. |
Chapter 6 samja nhi aa raha h |
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Answer» Its ok but youtube is the best in this situation Tannu what is your school\'s name? Instragram id captain ke 6103 Mai acche se smjha dunga Instagram m live aao samjha denge Chinta mt kro agle saal aaega |
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| 54995. |
Name the solution used in hemodialysis. |
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Answer» It is a process when realkidney is working properly the a machine is useful to purify it . Dialysate |
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| 54996. |
Reactivity series with valency |
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Answer» Muja chapter questions nhi aa raha h Hello |
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| 54997. |
Which is thé important chapter |
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Answer» Carbon and its compound and metallurgy or reproduction and periodic table I think the most important chapter is carbon and it\'s compounds |
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| 54998. |
What are uses of commercial motor?? |
| Answer» | |
| 54999. |
What is renewable and non renewable sources |
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Answer» Renewable resources: When talking about classification of resources, we will first see the renewable resources. Renewable resources are those resources that can be replenished or renewed naturally over time. Air, water, wind, solar energy etc are all renewable resources. Renewable resources can be easily renewed by nature.Non Renewable resources:The other classification of resources is non-renewable resources. Non-renewable resources are those natural resources that are available in limited quantity. These resources cannot be renewed or replenished in short duration. Therefore they are also known as exhaustible resources. Examples- coal, natural gas, petroleum etc. Which can Be renewed, which can Not Be renewed |
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| 55000. |
What is xxx ?? |
| Answer» XXX is a file extension for an embroidery design file used with Singer XL. Singer XL is a computer-controlled embroidery sewing maching. XXX files contain the instructions to perform fabric stitching and embroidery. | |