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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.
| 45851. |
How digestive system works? |
| Answer» Mouth: Food starts its journey from the mouth or the oral cavity. There are many other organs that contribute to the digestion process including teeth, salivary glands, and tongue. Teeth are designed to grind food particles into small pieces and are moistened with saliva before the tongue pushes the food into the pharynx.Pharynx: A fibromuscular y shaped tube attached to the terminal end of the mouth. It is mainly involved in the passage of chewed/crushed food from the mouth through the esophagus. It also has a major part in the respiratory system, as air travels through the pharynx from the nasal cavity on its way to the lungs.Esophagus: This is a muscular tube that connects the pharynx which is a part of an upper section of the gastrointestinal tract. It supplies swallowed food along with its length.Stomach : It serves as a muscular bag which is situated towards the left side of the abdominal cavity, beneath the diaphragm. This vital organ acts as a storage for the food and provides enough time to digest meals. The stomach also produces digestive enzymes and hydrochloric acid that maintains the process of digestion.Pancreas: It is a larger gland present just inferior to the stomach. It is short with its head connected to the duodenum and tail pointing towards the left part of the abdominal cavity. The pancreas releases digestive enzymes to complete the process of chemical digestion.Small Intestine: A thin, long tube of about 10 feet long and a part of the lower gastrointestinal tract. It is present just behind the stomach and acquires a\xa0maximum area of the abdominal cavity. The complete small intestine is coiled and inner surface consists of folds and ridges.Large Intestine: This is a thick, long tube measuring around 5 feet in length. It is present just beneath to the stomach and wraps over the superior and lateral edges of the small intestine. It absorbs water and consists of bacteria (symbiotic) that support in the break down of wastes to fetch small nutrients.Waste products are passed through the large intestine and eliminated out of the body as a solid matter called stool. | |
| 45852. |
What possible functions would petal and sepal of a flower serve |
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Answer» Sepals serve the purpose of protection at the time of bud stage from infection or any other harm to the flower from any external agent and also serves the purpose of providing starch to the flower by the process of photosynthesis.Petals are sometimes very colourful and also scented so as to attract insects or any other creatures towards them so that these creatures become the medium for the transfer of pollen grains from anther to stigma which will result in fertilisation. Sepal and petal are 2 parts of flower but it\'s is not important in reproduction.... |
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| 45853. |
What is metloied |
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Answer» The elements which shows the properties of both metal and non-metal sometimes are called metalloid. Metalloid are the elements which have properties of both metals and non metals like boron,silicon etc. |
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| 45854. |
Heating effect of current |
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Answer» In detail See ncert |
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| 45855. |
Difference between flemins left and right hand rule |
| Answer» Fleming left hand rule- if u keep your forefinger in the direction of the magnetic field and middle. Finger in the direction of current then the direction in which the thumb will point gives the direction of motion of conducted.. (fingers of left hand)Fleming right hand rule- if you keep the forefinger of your right hand in the direction of magnetic field and the thumb in the direction of the motion of the conducture then the direction in which your middle finger will point gives the direction of current.... | |
| 45856. |
The theory of evolution of species by natural selection was given by whom |
| Answer» Charles Darwin. | |
| 45857. |
Working of generator? |
| Answer» Generator converts mechanical energy into elecrical energy | |
| 45858. |
Why there is a need to harness non conventional source of energy |
| Answer» 1.Our demand for energy is increasing to improve quality of life and growth of population.2. Fossil fuels are limited. | |
| 45859. |
Sir what molecule stable haemoglobin in blood..... |
| Answer» | |
| 45860. |
describe the chapter rafraction and reflection |
| Answer» Its too long to describe dude | |
| 45861. |
If the micropyle of a dicotyledonous seed gets damaged then which process would be affected ? |
| Answer» | |
| 45862. |
How we are able to breathe while eating? |
| Answer» | |
| 45863. |
What happens when we ♨ lead nitrate |
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Answer» It decomposes to PbO+NO2+O2 It produce lead oxide + nitrogen dioxide+ oxygen |
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| 45864. |
Why it is necessary to separate oxygenated and deoxygenated blood |
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Answer» If de-oxygenated blood mixes with oxygenated blood then it will flow throughout the body and will lead to death.Because all the organs of the human body needs oxygenated blood to function properly. If oxygenated blood and deoxygenated blood are not seperated, then, the efficiency of oxygenated blood to be able to oxygenate the cells will be greately reduced and the organism like Human Being will be inefficient. To live |
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| 45865. |
What is the Weightege of science 2en pre board ? |
| Answer» Avearage of best of two PT\'s will be taken for the 10 marks in internals; 5 marks-Practicals, SEA\'S; AND 5 marks notebook assessment | |
| 45866. |
What is the life span of female ova |
| Answer» Once the egg has matured and is released from the ovary during ovulation, it goes into the fallopian tube where it lives for 12 to 24 hours. ... Though the egg has a lifespan of less than a day, sperm can stay alive inside a woman\'s uterus and fallopian tubes anywhere from 1 to 5 days. | |
| 45867. |
How can we find that when the woman get its pregnancy? |
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Answer» Ask from your teacher Having urine test on preganews |
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| 45868. |
Why is reproduction is necessary |
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Answer» For exist of life on earth Reproduction is not necessary . We can do for continuity of life on earth Repro.............................for the continuity of species. |
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| 45869. |
Give me some pratical based question of chapter 1to 4 |
| Answer» See in your practical book | |
| 45870. |
What are fossil and how is age of fossils determined |
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Answer» Fossils are the remains,traces and impressions of past organism.the study that deals with the study of fossils is known as paleontology.the age of fossils can be determined in three ways...they areRelative method:The fossils which are present in the near surface layer are more recent than the ones present in the midway and the fossils present in the midway are more recent than those present in the deeper layersRadioactive method:The formulas of radioactive potassium,uranium lead are all used in determining the age of fossilsElectron spin resonance method:It is the newly introduced technique which is used in determining the age of fossils without distroying any part.Hope it helps you all....dearz♥️♥️Raiha Fossils are the remaining of dead organism.for determining age of fossils:1)relative method 2) radioactive carbon dating method 3) uranium lead method 4) potassium argon method Fossils are yhe dead remains of plants and animals and the age of fossils can be determined by 2 ways first is layering and other is carbon dating. |
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| 45871. |
Important diagrams for board class10 |
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Answer» Diagrams of magnetic effects should also be carefully taken. All systems in your body ,flowers related and important organs and glands. |
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| 45872. |
Why do the planets do not fall? |
| Answer» Because they are kept at same place by gravitational force of sub | |
| 45873. |
Why is carbon is considered as a versatile element |
| Answer» Because it has two properties:-1. Catenation- In this it can make single, double and triple bonds .2. Tetravalency- In this it jas ability of sharing it\'s four electrons with other elements. | |
| 45874. |
What is the measure of biodiversity?? |
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Answer» One measure of biodiversity of an area is the number of species found there. One measure of biodiversity of am area is the number of species found there. |
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| 45875. |
Pb(NO3)2 gives us PbO+no2 + o 2 balnce it |
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Answer» 3Pb(NO3)2->3PbO+6NO2+O2 2Pb(NO)3→2Pbo+4NO2+O2 |
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| 45876. |
Any body is online here |
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Answer» Hmmmm Yes Yaaa |
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| 45877. |
Explain the disease of human eye And why star are twinkle and planet not |
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Answer» There r four defects of eye that is astigmatism in which horizontal and vertical lines r not visible... Presbyopia on which both distant and near by objects r not visible.. Myopia in which far away objects r not visible and hypermetropia in which near by objects r not visible. Stars r a point source of light and very far away from us. When light travels in the atmosphere, it is scattered by different amounts.. Sometimes atmosphere scatter more light and sometimes less light. This continuous brighter and dimming effect make the stars to twinkle whereas planets r a collection of point sources of light and nearer to us. The dimming effect caused by one part of plant is nullified by the brightening effect of another part. Thus, planets do not twinkle but star does. That\'s why planet doesn\'t twinkle Human eye can have diseases like myopia..hypermetropia...presbyopia...cataract Presbyopia, myopia,hypermeteropia,astigmatism.because they are near from earth so their light refract least |
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| 45878. |
What r the causes of astigmatism?? |
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Answer» uneven curvature of the cornea......... Blurry, fuzzy, or distorted vision |
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| 45879. |
Reagants |
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Answer» ?? ??? |
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| 45880. |
Classify brain and explain function of their parts. |
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Answer» Good support The main function of hypothalamus is the involvement in the metabolic activities and the secretion of the pituitary hormones. Hypothalamus Kya karta hai? Brain is divided into three parts that is forebrain mid brain and hindbrain. Forebrain consist of cerebrum which is the main thinking part of the body and it controls autonomic functions of the body. Migraine controls reflex movements of the head and neck and. Hind brain consist of medulla, cerebellum and pons. Pons helps in respiration. Cerebellum maintains posture and balance of the body. Medulla controls involuntary actions. |
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| 45881. |
Example of phototrophic ,hydrotrophic and thigmotrophic ,geotrophic |
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Answer» Photo- movement of plant towards light Hydro- movement of plant towards waterGeo- movement of root towards earth. Hydro-movement of roots, Geo-movement of roots...photo- movement of stem... |
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| 45882. |
Function of medulla and pons |
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Answer» Pons is responsible for respiration.....medulla is responsible for all reflex actions Pons for swallowing, bladder control, hearing, equilibrium, taste act. Medulla is responsible for swallowing...vomitting |
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| 45883. |
A voltmeter has 10 division between 0 & 1.What is the zero error of voltmeter |
| Answer» | |
| 45884. |
Function of hind brain |
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Answer» Controls involuntary actions and maintains balance and posture of body. It also helps in regulating respiration. Controls body movement, posture, regulates respiration, swallowing, coughing, sneezing, vomiting e.t.c........ |
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| 45885. |
Write chemical equation when bleachig powder reacts with slaked lime? |
| Answer» | |
| 45886. |
Write chemical equation ...when bleaching Powder reacts with atmospheric carbon dioxide?? |
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Answer» Thanks CaOCl2 +Co2 -----> CaCo3 + Cl2 CalCO2+Co2 gives CaCO3+Cl2 ???? |
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| 45887. |
In motor-- split rings and in generator --spill rings are used...??????????????? |
| Answer» It is slip ringsAnd it is a electromechanical device that allows the transmission of power and electrical from stationary to a rotating structure. | |
| 45888. |
What\'s the equation(reaction) of formation of soap? |
| Answer» | |
| 45889. |
What happened when milk is left open at room temperature during the summer |
| Answer» Oxidation reaction occurs due to which microorganisms develops and it makes its tastes sour. | |
| 45890. |
What are brushes |
| Answer» Supply the current from the battery to the split rings and hence to the coil | |
| 45891. |
What is the formula of esters |
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Answer» Formula of ester is CH3COOC2H5. CH3COOC2H5 |
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| 45892. |
On adding which the ph paper changes to blue ? colour?????? |
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Answer» On adding a Base.. PH paper changes to blue Blue |
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| 45893. |
Nitric a cid is a strong reducing or oxidising agent |
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Answer» Strong oxidising agent Strong oxidising agent Nitric acid is a strong oxidising agent |
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| 45894. |
What is the function of human heart |
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Answer» It pumps oxgenetated blood to rest of the body and pumps deoxygenated blood to liver for carbon dioxide to be removed. To pump blood |
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| 45895. |
What is double circulation system give me in step by step |
| Answer» When the blood goes twice in the heart during each cycle of vertebrates is called double circulation. | |
| 45896. |
what do you mean by double circulation of blood |
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Answer» A ciculation in which a blood passes twice from a heart to complete one cycle is called double circulation. The right side of the heart receives and pumps deoxygenated blood and left side of the heart receives and pumps oxygenated blood. This circulation is called double circulation.*The blood is pumped by the right ventricle and it enters the pulmonary artery whereas the left ventricle pumps blood into the aorta.The deoxygenated blood pumped into the pulmonary artery is passed onto the lungs from where the oxygenated blood is carried by the pulmonary veins into the left atrium.This is called pulmonary pathway*The oxygenated blood entering the aorta is carried by the network of arteries, arterioles and capillaries to the tissues from where the deoxygenated blood is collected by a system of venules, veins and vena cava and passed into the right atrium. This is the systemic circulation. When Blood passes twice in one cardiac cyclethen it is called double circulation of blood |
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| 45897. |
What is xylem phloem ? Function. |
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Answer» Xylem transport water and pholem transport food Xylem transports food and phloem transports water |
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| 45898. |
How to balance the equation |
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Answer» It is hit and trail method Se on google you will surely understand By heat and trial method |
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| 45899. |
Define sopa |
| Answer» Wrong q | |
| 45900. |
What is slag |
| Answer» During metallurgy \'Flux’ is added which combines with ‘gangue’ to form ‘slag’. Slag separates more easily from\xa0the ore than the gangue.\xa0Slag is fusible mass, which usually floats over molten metal, obtained by the reaction of the flux with impurities present in the concentrated ore.CaO + SiO2\xa0→ CaSiO3gangue flux slag | |