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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.
| 58401. |
What is the function of cytoplasm |
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Answer» Exchange of materials Cytoplasm stores molecules used for cellular processes as well as host many of these processes within the cell itself |
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| 58402. |
Hormone secration |
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Answer» 3)Thyroid gland: thyroxineEnsure iodine levelsDeficiency: goitre4)Adrenal gland: adrenalineSecreted when person is in anger, hunger,frightened.5)pineal gland : melatonin Endocrine system inside our body :Different glands in our body secrete hormones which are chemical messangers to pass on the message.Types:1)Pitutary gland - growth hormoneEnsure growth of a person.Deficiency:dwarfismOver secretion:gigantism2)pancreas:insulin Ensure sugar levelsDeficiency:diabetes melletus or inspedus |
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| 58403. |
Can anyone tell me the observation and conclusion of activity 2.2 science (acids,bases and salt |
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Answer» When basic solution naoh is added to cloth strip then the smell of onion cannot be detected and an acidic solution hcl does not destroy the smell of onion and the same thing also happens with vanilla extract.. It means vanilla extract and onion are olfactory indicators.. Vanilla,onionand clove all used as olfactory indicators if they change their smell after came in contact with acid or base |
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| 58404. |
Examples of Natural selection and genetic |
| Answer» Eg of natural selection: peppered moth | |
| 58405. |
What is meant by translocation? |
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Answer» Translocation is the process of transportation of food and other necessary things to the other parts of plants which need them . Translocation is done by phloem. Answer dene wale ko 80/80 marks mile ge TRANSLOCATION:The transport of soluble products of photosynthesis to other parts of plant through phloem is known as translocation. Translocation is the process of movement of materials from leaves to all other parts of the plant body Thanks trasportation of food Translocation is movement of organic molecule or some minerals ions in plants. Eg: Xylem and Pholem |
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| 58406. |
Accurate |
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| 58407. |
Principle of electric motor and generator |
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Answer» Electric generator l ~it works on principle of electromagnetic induction .when rotated coil is place between strong magnetic field then an induced current set up in them .Electric motor~it works on principle if current carrying coil is placed in a magnetic field , a force acts on coil which rotate it continously. electric motor principal :when conductor is placed between two strong magnet it observe force See in text or google ? |
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| 58408. |
What is the effect of Garbage Disposal.Explain in 80 words |
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Answer» Haa Google pe search kar le Bhai google pe search kar le 80 words vo bhi type karne pade ge.? It is an asset to the clean and green society.garbage disposal is a good method of disposing of the waste in an effective and an eco friendly way.it helps us to be disease free and stay healthy.it doesn\'t effect our ecosystem. 80 words haa....??? 80 words.... ??? |
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| 58409. |
Precipitation reaction definition |
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Answer» The reaction in which precipitates are produced are called precipitation reaction Reaction after which a solid residue is left.... as product ,i.e. precipitate, is known as the precipitation reaction........ |
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| 58410. |
What is ph value |
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Answer» A measure of acidity or alkalinity of water soluble substances (pH stands for \'potential of Hydrogen\'). A pH value is a number from 1 to 14, with 7 as the middle (neutral) point. Values below 7 indicate acidity which increases as the number decreases, 1 being the most acidic. Hope it might be understudable. H+ion concentration Ph value is the value, which determines whether the, substances is acidic ,basic or neutral in nature........ |
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| 58411. |
Why molecular movements are needed for life ? |
| Answer» Molecular movements are required to provide various essential molecules throughout the body of an organism for repairing and maintaining their structure. | |
| 58412. |
All formula physics class10th |
| Answer» | |
| 58413. |
where CuT is inserted |
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Answer» Your mother Uterus.. |
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| 58414. |
Eelectricity kya h |
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Answer» Electricity is a source of energy that has made are life comfortable and easy. It is the branch of science or physics that deals with the study of charge particles |
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| 58415. |
What is aperture of lens |
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Answer» The diameter of reflecting surface of a lens Aperture of a lens controls the amount of light reaching the film or image sensor. |
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| 58416. |
What is copper IUD |
| Answer» IUD(intra uterine divice) is a small T- shaped device that is planted in the uterus to prevent unwanted pregnancies. Copper IUD releases small amounts of copper in the uterus which prevents sperms from reaching the ovary. | |
| 58417. |
Trace the sequence of events which occur when a bright light is focused on your eye |
| Answer» Size of pupil decrease | |
| 58418. |
Diff between lymph and blood |
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Answer» Blood contains RBC\'s WBC\'s and Platelets . It contains haemoglobin pigment. | Lymph | Blood | \tIt is a colorless fluid.It is a reddish colored fluid.It is part of the lymphatic systemIt is part of the circulatory systemIt helps in body defense and is a part of the immune system.It is associated with the circulation of oxygen and carbon dioxide, nutrients hormones, waste products etc.It contains plasma and a lesser number of WBCs and platelets.It contains plasma, RBCs, WBCs, and platelets.Carries less amount oxygen and digested food.Carries more amount oxygen and digested food.Lymph plasma lacks proteins.Blood plasma consists of proteins, calcium, and phosphorus.Transports nutrients from the tissue cells to the blood, through lymphatic vessels.Transports nutrients and oxygen from one organ to another.The flow of lymph is slow.The flow of blood in the blood vessels is fast.\t|
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| 58419. |
Plz tell me atomic number and valencies of first 30 elements. ????????????? |
| Answer» Pg.no.86 of ncert you will get atomic number and you can calculate valency don\'t try to learn The valency of an atom is equal to the number of electrons in the outer shell if that number is four or less. Otherwise, the valency is equal to eight minus the number of electrons in the outer shell. Once you know the number of electrons, you can easily calculate the valency. | |
| 58420. |
Ncert textbook questuons are enough for sciece? |
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Answer» Other than all NCERT text book is important.... Mostly they are enough if you have done full ncert book and are able to answer any ques from any corner of book but if not then prefer some extra ques No A Yess |
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| 58421. |
How to traits expressed |
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| 58422. |
How does embryo get nutrition in mother\'s womb? |
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Answer» Placenta is a disc shaped tissue Through placenta Placenta |
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| 58423. |
Important diagrams plz |
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Answer» You have to prepare:- -the structure of neurone -the pollination of the plants -respiratory system -heart and -nephron of kidney. These are the most important figure Ya....... gaurav ji is ryt Hi friends u should have to cover all the chapter of biology and physics that is heart,nephron,eye,brain is most important. And construction of electric motor and generator |
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| 58424. |
How can you say that birds are evolved from the reptiles |
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Answer» The fossils provide evidence for evolution. A fossil bird called Archaeopteryx looks like a bird but it has many other features which are found in reptiles. This is because Archaeopteryx has feathered wings like those of bird but teeth and tail like those of reptiles. Archaeopteryx is, therefore, a connecting link between the reptiles and birds, and hence the birds have evolved from reptiles. Traces of feathers have been found in fossils of dinosaurs which were reptiles...hence we can say that birds have evolved from reptiles |
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| 58425. |
Which are important topics of science for class 10 board!!?...2018-19 |
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Answer» Full coarse hai... to apko sb kuch pdhna hoga Study everything |
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| 58426. |
Why alveoli are richly supplied with blood vessels? |
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Answer» Alveoli provide a surface where the exchange of gases can take place. the wall of alveoli contain extensive network of the blood vessels Because alveoli provide a surface where exchange of gasses takes place. Carbon dioxide dissolved in blood is released in alveoli and oxygen in the alveolar air is taken up by the blood to reach other body cells. Alveoli are richly supplied with blood so that exchange of gases can take place btw the membrane of alveoli and blood capillaries. Alveoli are richly supplied with blood vessels so that the exchange of gases can take place in higher composition. |
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| 58427. |
How does blood transfer nutrients to different parts of the body ? |
| Answer» Transported through the blood vessels and supplied through diffusion | |
| 58428. |
electron dot structure of bromine with calcium |
| Answer» CaBr2 | |
| 58429. |
mark splitup |
| Answer» Abhi hi poonchna ye | |
| 58430. |
Set 1easy tha kya |
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Answer» Jisne face kiya hai use hi pta hai??? Section D ka to ek do que dimag karb kr k rakh diya Bilkul nahi .... Neverr |
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| 58431. |
*Who knows the diagram of heart very well????* |
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Answer» Me..... Me too knows the diagram as well ? Me.....? Me |
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| 58432. |
Phy ch motion class 9th |
| Answer» Bhai 10th grade h ye | |
| 58433. |
Phy ch motion numicrels |
| Answer» A car increasing its speed from 20 km h 50 km in sec what is asecrlation | |
| 58434. |
What are the roles of Villi present in the small intestine? |
| Answer» It increases the surface area... for absorption of nutrients and other minerals..... and the walls of villi are full of blood capillaries..... which also help them to do so | |
| 58435. |
What does symbol used with water indicate |
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Answer» H2O indicates that 2 atoms of hyrogen and 1 atom of oxygen combines to form water. H2O |
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| 58436. |
What is the role of trypsin and lipase in the digestion of the food. |
| Answer» Trypsin digests protein and lipase digests fats present in food. | |
| 58437. |
WHAT IS AQUA RIGIYA |
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Answer» Aqua regia(royal water) is freshly prepared mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio of 3:1. It can dissolve gold,even through neither of these acids can do so alone. It is highly corrosive, fuming liquid. Aqua regia is a solution made by concentrated hydrochloric acid (HCL)and concentrated nitric acid (HNO3) in the ratio 3:1.It is used to remove impurities from lest reactive metals like gold, silver, etc. It is used by the goldsmiths to clean the golden and silver ornaments. A freshly prepared mixture of HCl and HNO3... in ratio 1:3...... A substance that is use to reduce weight of gold or other precious metals Aqua rigia is a freshly prepared mixtute of hcl and nitrate. It is a freshly prepared mixture of HCL and HNO3 in the ratio 3:1....it is highly corrosive liquid.....it cn dissolve gold |
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| 58438. |
Which technique is better bio gas or bio mass |
| Answer» Biomass: a term which refers to the source of the fuel obtained from plant and animal products.It is used for the production of biogas.Biogas: Decomposition of organic matter by anaerobic degradation by anaerobic micro organisms to produce an environment friendly gas called biogas. | |
| 58439. |
Give reason:Calcium does not occur in the free state. |
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Answer» Any other reason apart from being highly reactive? Cuz it\'s highly reactive Bcoz it is a highly reactive metal... |
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| 58440. |
Difference between natural selection and artificial selection |
| Answer» Natural selection affects the entire population of a species. Artificial selection only affects the selected individuals. Natural selection results in a large amount of biological diversity. Artificial selection only brings desirable changes and desirable traits and brings a decrease in genetic diversity. | |
| 58441. |
What is a metallic oxide |
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Answer» These are the oxides formed by metals when they react with oxygen present in atmosphere . They are basic in. nature It is basic oxide which is formed when a metal reacts with oxygen...gor ex:MgO... |
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| 58442. |
What do you mean by flattening of sun? |
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Answer» The apparent flattening of the Sun\'s disc at sunrise and sunset See pg 195 of NCERT. Sun flat kab hota h...koi or word hoga....check kro.. |
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| 58443. |
why stars twinckle |
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Answer» The twinkling of stars is due to atmospheric refraction Stars are twinkle because of atmospheric refraction |
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| 58444. |
Which mirror use in shailoon? |
| Answer» I think Concave mirror is used in shailoon | |
| 58445. |
Why we see dark color of sky during rainy season |
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| 58446. |
What is brisk effercence? |
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| 58447. |
What is the main questions of whole science chapter please tell me sir with each and every chapter.. |
| Answer» See in important question section of science subject of particular chapters in cbse guide. | |
| 58448. |
What happen when we add our waste to the invironment? |
| Answer» Harmful gases will be evolved | |
| 58449. |
Cleansing action of soap?? |
| Answer» | |
| 58450. |
name one organisms each having saprophytic , parasitic nd holozoic nutrition. |
| Answer» | |