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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.
| 44851. |
"pH has a great importance in our daily life"explain by giving three examples. |
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Answer» 1 . IN OUR BODY2 .IN SOIL3. IN HEALING STINGING OF ANTS AND WASP Google me dheak lo itna lamba kon likhega |
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| 44852. |
Why does sky look blue on a clear day |
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Answer» A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight. Because spread |
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| 44853. |
Inheritance of mendels laws |
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| 44854. |
Pakka infinity?? |
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| 44855. |
Proof that when inhale oxygen we will exhale carbon dioxide |
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| 44856. |
What is osmmosis |
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Answer» Movement of water particles from lower concentration to higher concentration. Osmosis is a process in which a liquid goes from lower concentration to higher concentration area that is known as osmosis. Flpw of water moleclues from the region of higher concentration to lower concentration. |
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| 44857. |
Which is the best app or site for science notes...excluding this app....? |
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Answer» No problem samyukta I think dronstudy gives the best notes Yrr 10th class notes k naam s ek app hh play store pr pink colour ka llogo h uska Usme bhi bdya notes milenge aapko |
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| 44858. |
What happens when lead nitrate is heated ? |
| Answer» Lead oxide +nitrogen is formed | |
| 44859. |
How many pH of grow plant in soil |
| Answer» The pH of grow plant in soil is close to 7. | |
| 44860. |
How will you show experimentally the metal are good conductor of heat |
| Answer» If you have ncert book then open the chapter 3 metal and non metal in page no 38 you found it | |
| 44861. |
How can the chromosomes be identified? |
| Answer» \tThe chromosomes differ in their number, size, structure, position of centromere, reactivity to different dyes, etc.\tChromosome are usually identified by staining with suitable dyes that give them a characteristic pattern. This is done after culturing the cells and stopping all of them at particular stage of division called called metaphase and then preparing a slide to veiwunder microscope. Then, karyotype is prepared. Karyotype is the number and appearance of chromosomes in a nucleus of somatic cell. | |
| 44862. |
Mention any 2 points of difference between pepsin and trypsin |
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Answer» Thanks Pepsin is an enzyme which acts In acidic medium and trpsin is acts in alkaline medium pepsin is secreted by gastric glands and pepsin is secreted by pancreas |
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| 44863. |
What is cataract?what are its effects?how u can restore the vision |
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Answer» What r its effects? The vision can be restored by an operation of eye lens Cataract is a disease in which eye lens became cloudy and whitish and we are unable to see the objects clearly |
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| 44864. |
Blue print of science chapter wise |
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| 44865. |
Joule\'s law of heating current |
| Answer» H= I square rt | |
| 44866. |
Write about the digestive system of human body with structure. |
| 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. | |
| 44867. |
Composition reaction |
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| 44868. |
If a woman is using a copper t will it help in protecting her from sexually transmitted diseases? |
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Answer» No No |
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| 44869. |
Which books we should prefer to get 100% in science |
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| 44870. |
Sirf 2terms aayege ya pure |
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| 44871. |
Selabars ky hai mam ya sir btao |
| Answer» Full ncert.. | |
| 44872. |
Write the conversion that takes place in a hydropower plant |
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Answer» Anyone whats the origin of electricity Mechanical to electrical Potent energy kinetic energy mechanical energy into electrical energy |
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| 44873. |
Why sun appear red in sunset and sunrising before apparent time |
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Answer» When the sun is near the horizon, sunlight has to travel the greatest distance, during this long journey of sunlight, shorter wavelength colours like blue gets scattered leaving behind longer wavelength colour like red. Due to the scattering of lower wavelength colors like blue, indigo, violet.... Hence the color having higher wavelength does not scatter so the sun appear red during sunrise and sunset.... |
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| 44874. |
Why do we have two eyes for vision in place of one |
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Answer» Because one eye itself cannot detect the exact position, size,.etc. of an object. So we have two eyes for vision in place of one... Two eyes gives us wider field of view.. Both r eyes view the same object with different angles.. Which improves r vision.. We have two eyes because one eye have to see 150 degree and two eye show 180 degre |
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| 44875. |
How to identify the period or group of a given element |
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Answer» Group : if valancy of element is 1 or 2 it group will be 1 or 2 . when if valancy of element is more than 2 and + 10 .Ex: X element has 5 valancy electron ,it\'s group will be 5 + 10=15 Period : no. Of electrons shell in its atom. Ex: if an element has 3 electrons shells (k,l,m)in the atom it belong to period 3 If there r 2 digit in eletronic confurigstion than period is 2 and if there is 4 on past digit no than groupis 14 Number of shells is equal to the number of periods and the number of electrons in the last shell gives us group number. If the electron in last shell is less than 3 then it\'s group number is same but if it is more than 3 then, number of electrons in last shell +10 give us group number... |
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| 44876. |
Model test paper 1 solution 2019u like |
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| 44877. |
Components of blood ?2marks question please? |
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Answer» Above topics ka feature bhi likh lana full 2 marks mil jayage ..? 1 : plasma2 : blood cells or corpuscles Plasma, RBCs, WBCs, and platelets |
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| 44878. |
Fiction of kideny ? answer 2marks question please? |
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Answer» Blood is filtered through capillary cluster in the nephron of the kidney. The filtrate flows along the tube and substances like glucose, amino acids and salts are reabsorbed to form urine. Fuction Fiction ya function |
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| 44879. |
Which topic is most important in life process chapter and also generally come in exams ? |
| Answer» Plz ans. my ques. | |
| 44880. |
One measure problem of aquatic respiration ? 2marks answer please answer the questions fast? |
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Answer» Plz Oil spill...., which blocks the respiration process in aquatic organisms....... and these are also very poisonous.......... |
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| 44881. |
How many gamets are produse by pollen gama |
| Answer» Two male and two female gametes.. | |
| 44882. |
2019 science ki paper ki tyari only ncert sa kara yah sample paper or ncert kitni percent ayah gi |
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Answer» Ncert he karla or kuch karna ki jaruat nahi ha na 90 tk aa skte h |
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| 44883. |
What is fragmentation.????? |
| Answer» A unicellular plant is divided many small fragments,which develop into new individual.? | |
| 44884. |
Explain mehdel law of inheritance in easy way plz exams are near |
| Answer» The Law of Dominance, Law of Segregation and Law of Independent Assortment are the three Mendel’s laws of inheritance. These laws came into existence by the experiments on pea plants in a variety of differing traits. Mendel started his research with monohybrid cross.Law of dominance explains that in a monohybrid cross between a pair of contrasting traits, only one parental character will be expressed in the F1 generation and both parental characters will be expressed in the F2 generation in the ratio 3:1. The one which expressed in the F1 generation is called the dominant trait and the one which is suppressed is called recessive trait. In simple words, the law of dominance states that recessive traits are always dominated or masked by the dominant trait.Law of segregation is the second law of inheritance. This law states that the pair of alleles segregates from each other during meiosiscell division (gamete formation) so that only one allele will be present in each gamete. In a monohybrid cross, both the alleles are expressed in the F2 generation without any blending. Thus, the law of segregation is based on the fact that each gamete contains only one allele. | |
| 44885. |
Fiction of lymph ? please answer this question ? |
| Answer» Lymb carries digested and absorbed fat from intestine | |
| 44886. |
Chapter 1 quedtion 6 all in full answer |
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| 44887. |
Difference between phenotype and genotype |
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Answer» The genetic constitution of an organism is called genotype for eg .height of plant can be expressed as TT or tt or Tt ....Whereas physical appearance shown in organism is called phenotype .that is plant is tall or small Phenotype is the physical appearance of the generation while genotype is the gene difference... |
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| 44888. |
State one reason for placing Mg and Ca in the same grp of d periodic table |
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Answer» Same physical, chemical and valence electrons.. Valence electrons are same..... |
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| 44889. |
What is the definition of electrical resistivity???? |
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Answer» Its numerically equal to resistance of a conductor of length 1 metre and 1 m^2 in cross sectional area.??? Resistivity is the specific resistance of a conductor... |
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| 44890. |
What is the name of c2h2 |
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Answer» Sry, sry answer ethyne hai, its typing mistake ? Ethyne It\'s ethyne because triple bond is there between two carbons Ethene Ethyne Ethene.. |
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| 44891. |
One masure problem aquatic respiration |
| Answer» They use only dissolved oxygen.?? | |
| 44892. |
Define spacation |
| Answer» Speciation: It is an event that splits a population into two independent species which cannot reproduce among them.Specification :Development of specialised cells is called as differentiation. Cell has to undergo commitment depending upon its fate. The process of commitment is divided into two stages namely specification and determination. The fate of the cell is said to be specified when it is capable of differentiating on its own when placed in a neutral environment. | |
| 44893. |
Solution for activity 10.12 light lesson...class 10 cbse...fast plzzzz...my board is nearing |
| Answer» Solution of activity 10.12 light class 10 | |
| 44894. |
What is full form of IUPAC. |
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Answer» International Union of pure and applied chemistry International Union Of Pure And Applied Chemistry International union pure applied chehistry International Union of Pure and Applied Chemistry |
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| 44895. |
Name the various chemical reaction |
| Answer» 1-Decomposition reaction 2-Combination reaction 3-Displacent reaction 4-Double displacment reaction and 5-Redox reaction | |
| 44896. |
Difference between resistance and resitivity |
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Answer» 1 Resistance- Resistance of conductor is a physical property of conductor which resists the flow of charge.Resistivity_ Resistivity of a substance is the physical property of substance whuch have particular dimensions 2 Resistance is donated by R.Resistivity is denoted as (rho).3 S I unit of resistance of Ohms S I unit of Resistivity is ohms-metre \tResistanceResistivityResistance is the physical property of a substance because of which it opposes the flow of current i.e. electrons.Resistivity is the physical property of a particular substance which is having particular dimensions.Resistance is directly proportional to the length and temperature while it is inversely proportional to the cross-sectional area of the material.Resistivity is only proportional to the nature and temperature of the particular material.RρR = V/I or, R = ρ(L/A)V = Voltage, I = Current, ρ = Resistivityρ = (R×A)/L R = Resistance, L= Length, A = Cross-sectional areaThe SI unit of resistance is Ohms.The SI unit of resistivity is Ohms-meter.The property of resistance is used in several places like heaters, fuses, sensors, etc.Electrical resistivity measurement is used as a quality control test for calcareous soil.\t |
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| 44897. |
Explain OTE. |
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| 44898. |
Find out the resistivity for a wire having length 2m and radius 2mm and resistance 1 ohm |
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Answer» Resistivity=RA/L where R=1ohm,A=πr²=3.14×0.2×0.2=0.1256cm²,L=200cmResistivity=1×1256/1000×200=0.00628Resistivity (rho)=0.00628 (1×2)÷2 |
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| 44899. |
What is osmo regulation ? |
| Answer» Maintainance of salt and water balance in body | |
| 44900. |
Why are plant |
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