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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.
| 49351. |
How to make notes of science? |
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| 49352. |
What is hypertonic solution in biology simple words? |
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Answer» If the medium surrounding the cell has a lower water concentration than inside the cell, i.e., if the solution is highly concentrated, then the cell will lose water through osmosis. Such concentrated solution is called Hypertonic solution. A solution in which concentration of solutes is greater outside the cell than inside it is called hypertonic solution. |
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| 49353. |
NCERT QUESTION OF CHAPTER HOW DO organisms reproduce |
| Answer» Hi | |
| 49354. |
why do elements in a group show similar properties? |
| Answer» Because their valencies are same ,and thus show similar reactivity. | |
| 49355. |
What are dental caries? How they develop in human teeth |
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Answer» Due to the germination of straptococus bacteria in the teeth *Dental caries are the tooth decay caused by softening of tooth enamel and dentine which form cavities.* CAUSES** When eaten food gets stuck in tooth for long time , the bacteria present in mouth break it down into sugar, during this process they release acids which softens tooth enamel and causes dental caries .* Bacteria in mouth form colonies and then dental plaque which prevents saliva from nutrilising the effect of acid and the caries growwwwwwwwww. |
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| 49356. |
WHY DO GIRLS GET WOMMET WHEN THERE EGG GETS FERTILISED? |
| Answer» First u tell me what\'s this word "wommet" ???! | |
| 49357. |
Kiski tyari puri ho gayi hai board exam ke Hame bhi bataye kaise padhana hai please |
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Answer» 2din learn ak din test Hamara revision start ho gya h |
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| 49358. |
M gussa Hu sabse.... Katti.... Sab meko akela chod gye.... Busy h sab k sab.. Katti ?????????? |
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Answer» Hloo me apse promise kerta hu age se asa nhi krunga pkka maf kerdo yarr sorry yarr sorry please sch me meri koi glti nhi thi ujhe nind keb a gyi mujhe pta he nhi chela Phir mulakaat hogi kabhi Good night Hii Halo ankesh Hello honey |
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| 49359. |
We should use coal and petroleum judiciously. Why? State 4 reasons |
| Answer» We should use coal and petroleum judiciously because:1.Reserves of coal and petroleum are Limited.2. It takes millions of years for nature to replenish these resources.3. Combustion of fossil fuels pollutes the atmosphere by forming oxides of carbon, nitrogen and sulphur.4. Excess amount of carbon dioxide in the atmosphere increase global warming. | |
| 49360. |
Double |
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Answer» What double Complete your question.... |
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| 49361. |
Write the 10% law of energy three tropical level |
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Answer» According to this law only 10 percent of energy entering a particular tropic level is available for transfer of energy to next higher tropic level Only 10% of energy entering a paticular trophic level of organisms is available for transfer to the next higher trophic level. The energy available at each successive trophic level is 10% of the previous level.This law was given by Raymond Lindeman. |
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| 49362. |
Explain importance of soil for plant growth. |
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Answer» Sorry Soil gives nutrients to the plantsSoil gives appropriate raw materials for growth Soil works as base for plant AAana.. A.M AmsN |
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| 49363. |
How many characters of life process |
| Answer» Nutrition Excretion Transportation Respiration | |
| 49364. |
Whst is science |
| Answer» Science is a systematic study of life. | |
| 49365. |
The process of reproduction has inherant variation cleaify this statement |
| Answer» Bahdvnsnakd | |
| 49366. |
Define evolutoin |
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Answer» Evolution is a slow sustained and continuous changes The sequence of gradual changes which takes place in the primitive organisms over million of years in which new species are produced is called evolution. |
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| 49367. |
How is ester formed? |
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Answer» Yes It is formed by reaction of carboxylic acid with alcohols. |
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| 49368. |
The visible characteristics in an organism is known as |
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Answer» Phenotype Morphological characteristics Phenotype |
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| 49369. |
Explain *** determination |
| Answer» The females carry two X-chromosomes. Females produce one type of gametes (eggs) with same type of chromosomes (22 + X). Males have one X and one Y chromosome. Among the male gametes, half of the sperms carry X-chromosome (22 + X) and half carry Y-chromosome (22 + Y). Thus female is homogametic and male is heterogameticWhen a sperm carrying X chromosome fertilizes an egg, the zygote develops into female (XX condition). When sperm carrying Y chromosome fertilizes an egg, the zygote develops into a male (XY condition). Thus, *** is determined at the time of fertilization. | |
| 49370. |
How ameaba can change its shape for eating food? |
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Answer» By using pseudopodia Its makes finger like projection by help of psedopodia on its surface |
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| 49371. |
What is the role of mitosis and miosis |
| Answer» Mitosis and meiosis both involve cells dividing to make new cells. This makes them both vital processes for the existence of living things that reproduce sexually. Meiosis makes the cells needed for sexual reproduction to occur, and mitosis replicates non-*** cells needed for growth and development. Together, they provide the cellular basis for healthy growth and sexual reproduction. | |
| 49372. |
Why are some substances bio degradable and some non biodegradable |
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Answer» Some substances are biodegreable b\'coz they have stored energy and that energy attrated the bacterias to react on it but in non-biodegreable substancces vice-versa. Because of capacity of decomposer |
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| 49373. |
What is catenation and tetravalency |
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Answer» Tetravalency is a property of carbon it has four valence electron it can share four electron with other atom and form a chain Catenation is the property of carbon to form long chain and means carbon has four valence electrons. catenation is property fo carbon to bond with other carbon in a row shape or branch CATENATION: The selflinking property of carbon.Carbon has valency of four electrons so it is called tetravalent |
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| 49374. |
What is arrested flower development? |
| Answer» In biology, when the development of a flower is affected for any reason, such as plant disease or due to pollution of the atmosphere etc., it is known as ‘arrested flower development’. The Flower does not grow or develop beyond a certain point. | |
| 49375. |
Plant absorbs phosphorous from soil to make which substance...? |
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Answer» Nucleotides Hlo They have high melting point as they have strong molecular force of attraction Hlo Divya Ionic compound have high melting point why How are you mahi Can anyone chat with me Hai Hlo mahi Hlo khushi Hlo |
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| 49376. |
Define the principal focus of concave mirror |
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Answer» The principle focus of concave mirror is the point in which light rays parallel to principle axis pass through after reflection The principal focus of a concave mirror is a point on its principle axis to which all the light rays which are parallel and close to the axis converge after reflection from the concave mirror. |
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| 49377. |
Define one watt hour |
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Answer» One watt hour is unit of energy equivalent 1 watt of power expended for 1 hour The watt-hour can be defined as the unit of energy equivalent to one watt of power expended for one hour of time. |
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| 49378. |
What is alkali metal group |
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Answer» All the metal of group one in modern periodic table are called alkalai metal group They are highly reactive.The main resion behind calling them alkali metal group is that all metal from this group reacts with oxygen to form basic oxide,which ultimately reacts with water to form alkali An alkali metal is any of the elements found in Group IA of the periodic table (the first column). Alkali metals are very reactive chemical species which readily lose their one valence electron to form ionic compounds with nonmetals. All elements in the alkali metal group occur in nature.List of Alkali MetalsThe alkali metals are:Lithium (Li)Sodium (Na)Potassium (K)Rubidium (Rb)Cesium (Cs)Francium (Fr) |
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| 49379. |
YAP |
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| 49380. |
What is substance |
| Answer» A substance is a matter which has a specific composition and specific properties...every pure compond is a substance.Example of substance: Iron is an element and hence is also a substance. | |
| 49381. |
What is electrolytic |
| Answer» The process by which ionic substances are decomposed into simpler substances when an electric current is passed through them. | |
| 49382. |
Can you give me topics for making my home science fair of 10th |
| Answer» Please reply as soon as possible | |
| 49383. |
Diff b/w Sexual and asexual reproduction? |
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Answer» Deep online ate question ker dena aur thora mera wait nhi to teb tk me online a jsinga In asexual reproduction single parent need while in sexual reproduction male and female both need In sexual reproduction two parents are needed it involve gamets and it produces a lot of variations while in asexual reproduction one parent is needed there is no evolvement of gamets and it produces very little variation. In asexual reproduction, only 1 parent is needed whereas in sexual reproduction, 2 parent is needed. |
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| 49384. |
How amoeba get reproduce?? |
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Answer» BinAry fission Deepu online ate he new question ker dena In amobeo asexuall reproduction Hii deep When the amoeba cell has reached its maximum size of growth, then first the nucleus of amoeba lengthens and divides into 2 parts. After that, cytoplasm of amoeba divides into 2 parts, one part around each nucleus. In this way, one parent amoeba divides to form two smaller Amoebae. Amoeba reproduces by asexual reproduction method called binary fission. |
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| 49385. |
How many of you has completed Biology for board exams? |
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Answer» Yaaaa I have completed I have completed!!! I have completed.. |
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| 49386. |
Explain the process of urine formations |
| Answer» Ultrafiltration occurs in glomerulus under high pressure forcing many of the substance is dissolved in blood into the bowman\'s capsule. The blood then passes through the tubular part of nephron where useful substances such as glucose, amino acids, and salts and measure amount of water are selectively reabsorbed. Urine formed in each kidney enters a long tube called the ureter which connects the Kidneys. Urine is stored in the urinary bladder until the pressure of the expanded bladder causes the urge to pass it out through urethra. | |
| 49387. |
How many electron and protons are present in 50 coulomb of charge |
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Answer» 3•125×10^20 3.125×10^20 But mine answer is 31.25 × 10^19 electrons. My is 1.95 |
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| 49388. |
Wath is evaluation. ?????????? |
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Answer» The gradual change of posses .. Evaluation is a process in which differences in an organsims over a long period of time and after million years after a new organisms devloped or species whichbis totallyb different from it . Formation of new species from old one.. This process is called evolution Evaluation is the process by which you make a judgement about the worth of something. Evaluating, or assessing the value or worth of something, it is an activity that involves making judgements. The sequence of changes which takes place in the primitive organisms over millions of years in which new species are produced is known as evolution. |
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| 49389. |
how would you distinguish between baking powder and washing powder on heating |
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Answer» Baking powder on heating produces carbon dioxide , which turns lime water milky. But washing soda on heating doesn\'t produce any such gas , thus, it has no effect on lime water. So, when the gas produced by heating samples can be checked by passing through lime water . If the lime water turns milky then the evolved gas is CO2 and the heated substance is baking powder. Baking soda is one of the component of bakingpowder. Baking powder is made by the mixing of baking soda,tartric acid and starch Like a boss ?? |
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| 49390. |
Give a chemical test to distinguish between ethanol and ethanoic acid |
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Answer» We can alao do litmus test also Answer:thw test is as simple as the release of carbon dioxideExplanation:when we react ethanoic acid and ethanol with sodium carbonates bicarbonates , the following happensETHANOIC ACID : carbon dioxide gas is released along with waterETHANOL : carbon dioxide is not releasedthus sodium carbonates and bicarbonates can be used to test or differentiate between the two |
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| 49391. |
What is fat digestion |
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Answer» In this fats are emulsified into fatty acid so that it can easily digest by the body Fat digestion is also called emulsification.It is the breakdown of fat globules during digestion. Fat digestionHowever fats are mainly digested in the small intestine. The presence of fat in the small intestine produces hormones that stimulate the release of pancreatic lipase from the pancreas and bile from the liver which helps in the emulsification of fats for absorption of fatty acids. |
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| 49392. |
What is catination properties |
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Answer» The property of carbon to make long chain is called catenation. Catenation is the unique property of carbon to make bond with other carbon atoms to form a long chain. It is the property of carbon atom to form bond with itself and give rise to a single large structure or chain The unique property of carbon to form bonds with other carbon atoms giving rise to large molecules is known as catenation. Due to Catenation, compounds of carbon have long chains of carbon , branched chains of carbon and even carbon atom arranged in rings. |
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| 49393. |
Why do we conserve resourses |
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Answer» ◆If the present trend of resource depletion by few individuals continues, the future of our planet is in danger. ◆Conservation of resources is also essential for sustainable existence of all forms of life. ◆Resource conservation become extremely important in a country like India which has enormous diversity in the availability of resources.◆ Indiscriminate exploitation of resources has led to global ecological crises. Resources are vital for any developmental activity. But irrational consumption and over utilization of resources may lead to socio-economic and environmental problems. To overcome these problems, we conserve resources. |
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| 49394. |
Define metallic and non metallic chacters. |
| Answer» Metallic character are the level of reactivity of a metal. Metallic tendency increases when going down a group. Non-metallic character means the tendency to accept electrons during chemical reactions. Tendency of non metal increases when going from left to right across the periodic table. | |
| 49395. |
What is the difference between antaacid and antioxidant ? |
| Answer» Antacids are a group of mild bases which have no toxic effects on the body. Being basic in nature antacids react with excess acid in the stomach and neutralize it. But an inhibits the oxidation of other molecules. | |
| 49396. |
Why ethane is a bad conductor of electricity? |
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Answer» Because ethane is a covalent compound,so it has no charged ions that\'s why it is a bad conductor of electricity. Electricity is conducted by other metals or ionic compounds due to the presence of free electrons Because they are covalent compound and they do not conduct electricity. |
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| 49397. |
How does metal conduct electricity? |
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Answer» Metal conduct electricity because they can readily give up their valence electrons. In the metal, electrons are free to move and give rise to to properties such as electrical conductivity. Metals are the good conductors of electricity, because they contain free electrons. These free electrons move easily through the metal and conduct electric current. |
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| 49398. |
What is the name of the disease for which doctor have to do diagnose surgery???? |
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| 49399. |
Hi.. Koi mera friend h yha??? |
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Answer» Ok new question bnao aur usme reply kro apne answer nhi diya ab k mujhe answer do please Pika pi hii deepu Ok..adu bestu..? Shreya and abhinav.....chalo kahi aur chalte h...? Yeah shreya....party to banti h...? Mera hi box mila baate krne k liya aapko.... Plz khi or jake baate krlo ji... Question bnalo aap log... Hume shivu se baat krni thi or suhu se ??????? Bye..article likh lunga tab aunga..?? Bht badhiya..?? Nhi yrr..bhul gya..???abhi yaad dilaya tmne..2 likhe h.. ??hum log milke party krenge..h na aadya.. Ha..likhe? Ok....jaroor batana...? Ma\'am ne 8 articles diye the na?? Abhinav articles likhe..? Ha...jab milengi bata dunga..?? Deep neeche ke box m mera message check kar lena plse Sahi kaha aadya..?? Don\'t worry Abhinav...mil jayegi...? Ha..thanku..? All the best abhinav..? Hello deep.. Shreya ne sahi bola...? Hi besties ?? Ha vahi kr rha hu..koi mila ni..???? OK priyanshu Abhinav thodi der wait kro sab milenge..?? Ok..abhinav....dhundhte raho ....? Padhai ho gyi..??? Hello bestie.. Nahi..abhi ni mili..mil jayegi..?? Hello bestie..and abhinav..? Mili kya...???? Hello aadya..?? Shreya..online ho??reply kro phir.. Hello....abhinav..? Shreya.....are u online...???? Ha..mai hu.. Apka friend Haaa main hu |
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| 49400. |
A piece of wire |
| Answer» | |