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find the prime factorisation of the denominator of the rational number equivalent to 8.39

Posted by Aan Anna Philip (May 26, 2017 10:50 p.m.) (Question ID: 5511)

What wold have happened if mouth cavity and nasal passage were not separated? 

Posted by Rachna gupta (May 26, 2017 1:47 p.m.) (Question ID: 5502)

How does air in nasal passage disturbs food in mouth cavity?

Posted by Rachna gupta (May 26, 2017 1:42 p.m.) (Question ID: 5501)

Name shape of the curve of a quadratic polinomial 

Posted by Gayaprasad Yadav (May 26, 2017 10:53 a.m.) (Question ID: 5498)

  • Answers:
  • The graph of a quadratic function is called a Parabola.

    A parabola is roughly shaped like the letter "U".

    Answered by Payal Singh (May 26, 2017 11:49 a.m.)
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what was the name of first book written by helen keller? why was she charged with plagiarism? who helped helen keller overcome the shock of being charged with plagiarism?

Posted by ayush jain (May 26, 2017 5:12 a.m.) (Question ID: 5497)

  • Answers:
  • 'The Frost king'  was the name of the first book Helen wrote.

         She was charged with plagiarism as it was believed that her story was similar to that of Miss Canby's 'The Frost Fairies'.

          Miss Anne Sullivan, her teacher helped her overcome the shock of being charged with plagiarism.

    Answered by Rachna gupta (May 26, 2017 2:07 p.m.)
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write about the struggle of helen keller in achieving education in college? who helped helen keller?

Posted by ayush jain (May 26, 2017 5:11 a.m.) (Question ID: 5496)

when did helen visit the world;s fair? who accompained her? descrinbe the major things witnessed by helen keller at world;s fair. why was she allowed to touch the things present there ?

Posted by ayush jain (May 26, 2017 5:10 a.m.) (Question ID: 5495)

  • Answers:
  • Ans. Helen visited the world's fair in 1893 with Ms. Anne Sullivan and Dr. Graham Bell. She witnessed entire world under her fingertips. She visited India, Egypt, Venice and Africa at the fair.

    She shares her joy of examining a ship which was modeled after Columbus' ship. At the exhibit of Cape of good hope she witnessed the process of diamond cutting and washing.

    She encapsulates her journey of beholding the sights of Shivas , Ganeshas and the majestic Pyramids as event taken from "Arabian Nights".

    Answered by Naveen Sharma (May 26, 2017 12:40 p.m.)
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who was anne sullivan? write about her contribution in helen keller's life. how was she a wonderful teacher?

 

Posted by ayush jain (May 26, 2017 5:09 a.m.) (Question ID: 5494)

  • Answers:
  • Ans. Miss Anne Mansfield Sullivan had the greatest influence on the life, character and achievements of Helen Keller. She gave a new direction, meaning and purpose to Helen's dark life. Miss Sullivan inherited all those traits and characteristics that go in making a perfect teacher. She was a picture of tireless patience . It was her constant encouragement, help and guidance that made Helen Keller first deaf and blind in the world to earn a bachelor degree.

    Anne Sullivan arrived at Keller's house in March 1887. She immediately began to teach Helen to communicate by spelling words into her hand, beginning with "d-o-l-l" for the doll. It was Miss Sullivan who unfolded and developed Helen's skills and possibilities. It was Sullivan's genius as a teacher, her sympathy and loving tact which made learning so beautiful and interesting for Helen Keller. She felt that her being was inseparable from her student. All that was the best in Helen Keller had been awakened by the loving touch of Miss Sullivan. Anne Sullivan stayed as a companion to Helen Keller long after she taught her.

    Answered by Naveen Sharma (May 26, 2017 12:39 p.m.)
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write the character sketch of Dr. Alexander graham bell. how did he help helen keller?

 

Posted by ayush jain (May 26, 2017 5:08 a.m.) (Question ID: 5493)

  • Answers:
  • Ans. Alexander graham bell was a scientist, inventor and a very close friend of Helen. He was a philanthropist and was always eager to help the deaf and blind. He was the one who guided Helens parents and told them about Perkins institute for the blind. He was a kind hearted person and guided Helen during her tough times. Even when she couldn't understand language

    Dr. Alexander made her very comfortable around him. He became her tour guide in the world fair. He gave her a lot of knowledge. Helen had very fond memories of him. He is the kind of friend one should have in their life.

    Answered by Naveen Sharma (May 26, 2017 12:37 p.m.)
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who was Dr.julian chisolen ? why did helen keller's family approach him> what was the outcome of the meeting ?

Posted by ayush jain (May 26, 2017 5:07 a.m.) (Question ID: 5492)

  • Answers:
  • Ans. Dr. J. Julian Chisolen was an eye, ear, nose and throat specialist. Helen Keller's family approach him to consult about Keller's illness and for some advice. He further sent them to Alexandar Graham Bell who was working with the deaf children at that time. Bell advised them to contact the Perkins Institute for the Blind. On reaching there, the school’s director put Helen under the charge of their former student Anne Sullivan who herself was visually impaired.

    Answered by Naveen Sharma (May 26, 2017 12:35 p.m.)
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Explain with the help of <i>diagram</i> where are stomata located on stems of herbaceous plants? 

Posted by Rachna gupta (May 25, 2017 4:11 p.m.) (Question ID: 5489)

  • Please reply.

    Please...

    Posted by Rachna gupta (May 25, 2017 6:55 p.m.)
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Explain with the help of a diagram where are stomata located on herbaceous plants.

Posted by Rachna gupta (May 25, 2017 2:04 p.m.) (Question ID: 5485)

  • Please reply. 

    Please...

    Posted by Rachna gupta (May 25, 2017 2:35 p.m.)
  • Please reply fast.

    Posted by Rachna gupta (May 25, 2017 2:13 p.m.)
  • Add Comment
  • Answers:
  • Ans.In herbaceous plants stomata are commonly on both leaf surfaces, the upper (adaxial) and the lower (abaxial) surfaces.

    Answered by Naveen Sharma (May 25, 2017 3:07 p.m.)
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How does exchange of gases take place in herbaceous plants? Explain with diagram.

Posted by Rachna gupta (May 25, 2017 2:02 p.m.) (Question ID: 5484)

  • Please reply. 

    Please...

    Posted by Rachna gupta (May 25, 2017 2:36 p.m.)
  • PLEASE REPLY FAST.

    Posted by Rachna gupta (May 25, 2017 2:13 p.m.)
  • Add Comment
  • Answers:
  • In plants, oxygen and carbon dioxide diffuse through the stomata and the intercellular spaces of the leaves, and the lenticels of the bark.

    Lenticels are small openings in the pits of the bark. The exchange of gases takes place through the lenticels also, apart from the exchange through the openings in the leaves.

    The direction of exchange of gases between a plant and its surroundings depends upon the time of the day and the usage of the gases by the plant. Plants respire throughout the day, while photosynthesis takes place only in the presence of sunlight. In daytime, carbon dioxide produced in respiration by the plants is used by them in photosynthesis. So, carbon dioxide is not released into the environment.

    In fact, plants take in additional carbon dioxide from the air for photosynthesis. Out of the oxygen produced in photosynthesis, some amount is consumed by the plants in respiration.

    The rest is released into the air through the stomata. At night, when there is no photosynthesis, no oxygen is released. Also, the carbon dioxide produced in respiration is not used by the plants. So, it is released in the air.

    Answered by Shivam .G (May 25, 2017 5:28 p.m.)
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A Boat takes 3 hours to go 45 km downstream and IT returns in 9 hours find the speed of stream and that a boat in still water

Posted by Binod Sharma (May 25, 2017 1:43 p.m.) (Question ID: 5483)

  • Answers:
  • Ans. Let Speed of boat in still water = x km/h

    Speed of stream = y km/h

    According to question, 

    Case 1 Downstream :

    Time taken = 3 hours

    total distance = 45 km 

    Speed of  boat downstream = x + y 

    So, {tex}{45\over 3} = x+y{/tex}

    => x+y = 15    ............. (1)

    Case 2 Upstream : 

    Time taken = 9 hours

    total distance = 45 km 

    Speed of  boat upstream = x - y 

    So, {tex}{45\over 9} = x-y{/tex}

    => x -  y = 5   ..............(2)

    Adding (1) and (2) we get

    => 2x = 20 

    x = 10 

    From (2). 10 - y =  5 

    => y = 5 

    So speed of boat in still water = 10 Km/h

    Speed of stream = 5 Km/h

    Answered by Naveen Sharma (May 25, 2017 2:26 p.m.)
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What do you mean by community government?  What values does it promote?

Posted by Priyanshu Nandan (May 25, 2017 7:56 a.m.) (Question ID: 5479)

  • Answers:
  • It is an independent public government with powers and responsibilities similar to the municipal government of other NWT communities

    The community government was first originated in Belgium, in community government, a specific person is chosen from a particular religion or caste who represents their community. When this concept was introduced at first there were are a lot of problems and a lot of people had a fight over this because they didn't support the idea of community government. Belgium was the first one to follow this idea, it was a success in Belgium.

    Answered by Shivam .G (May 25, 2017 5:17 p.m.)
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Why is Pakistan under  general Musharraf not considered as a democratic ?

Posted by Priyanshu Nandan (May 25, 2017 7:53 a.m.) (Question ID: 5478)

  • Answers:
  • Ans.

    • In Pakistan General Pervez Musharraf tied a military coup in October 1999. He overthrew a democratically elected government and declared as Chief Executive of country.
    • He changed his designation to President later and in 2002 held a referendum that granted him a 5 year extension.
    • Pakistan media, human rights organizations and democracy activists said that the referendum was based on malpractices and fraud.
    • In August 2002 he issued a Legal Framework order amending the constitution of Pakistan. Now the president could dismiss the national / provincial assemblies.
    • The work of civilian cabinet is supervised by a National Security Council dominated by military. After the law was passed, elections were held to the assemblies.
    •  Thus there were elections elected representatives had some power but the final power was with the military and General Musharraf himself. 

    CONCLUSION: People may have elected representatives to national and provincial assemblies but those elected representatives are not really the rulers. The final power is with Army officials and General Musharraf who are not elected by people. Therefore, Pakistan couldn’t be called a democracy

    Answered by Naveen Sharma (May 25, 2017 8:25 a.m.)
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During the process of respiration COand H2O are formed as by products. How do we eliminate water formed during the process.

Posted by Rachna gupta (May 24, 2017 11:19 p.m.) (Question ID: 5477)

  • Answers:
  • Along with carbondioxide, we also exhale water in the form of water vapour

    Proof -

    When we exhale on a lens in a pair of spectacles, we can clearly see a layer of water vapour on it.

    Answered by Ahmed Hamzah (May 25, 2017 12:11 a.m.)
    Thanks (2)
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Why is Pakistan under general Musharraf not considered as a democratic ?

Posted by Priyanshu Nandan (May 24, 2017 9:42 p.m.) (Question ID: 5475)

  • Answers:
  • Ans.

    • In Pakistan General Pervez Musharraf tied a military coup in October 1999. He overthrew a democratically elected government and declared as Chief Executive of country.
    • He changed his designation to President later and in 2002 held a referendum that granted him a 5 year extension.
    • Pakistan media, human rights organizations and democracy activists said that the referendum was based on malpractices and fraud.
    • In August 2002 he issued a Legal Framework order amending the constitution of Pakistan. Now the president could dismiss the national / provincial assemblies.
    • The work of civilian cabinet is supervised by a National Security Council dominated by military. After the law was passed, elections were held to the assemblies.
    • Thus there were elections elected representatives had some power but the final power was with the military and General Musharraf himself.

      CONCLUSION:
      People may have elected representatives to national and provincial assemblies but those elected representatives are not really the rulers. The final power is with Army officials and General Musharraf who are not elected by people. Therefore, Pakistan couldn’t be called a democracy
    Answered by Naveen Sharma (May 25, 2017 9:03 a.m.)
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The land left without cultivator for one or less than one agricultural year is known as ?

Posted by Priyanshu Nandan (May 24, 2017 9:41 p.m.) (Question ID: 5474)

  • Answers:
  • Current Fallow : This is the land which is left without cultivation for one or less than one agricultural year.

    Fallowing is a cultural practice adopted for giving the land rest. The land recoups the lost fertility through natural processes.

    Answered by Payal Singh (May 25, 2017 9 a.m.)
    Thanks (2)
  • Fallow land

    Answered by Ahmed Hamzah (May 24, 2017 10:19 p.m.)
    Thanks (1)
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Why bases does not react with metal carbonate or metal bicarbonate? 

 

Posted by Gagan Singh (May 24, 2017 8:49 p.m.) (Question ID: 5473)

  • Answers:
  • Metal Carbonates do not react with bases because metal carbonates are itself bases.

    So base when added to base gives no reaction.

    Answered by Payal Singh (May 24, 2017 8:51 p.m.)
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GIVE EXAMPLE OF POLYNOMIALS p(x),g(x)and r(x), which satisfy the division algorithm and:

  1. deg p(x)=deg q(x)
  2. deg q(x)=deg r(x)
  3. deg r(x)=0

 

PLS GIVE THE ANSWER........

Posted by Archith jayalal (May 25, 2017 9:15 a.m.) (Question ID: 5472)

  • THANK YOU VERY MUCH.........

     

    Posted by Archith jayalal (May 24, 2017 7:27 p.m.)
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  • Answers:
  • We can write many such examples

    (i) deg p(x) = deg q(x)

    P(x) = x2, q(x) = x2, g(x) = 1, R(x) = 0

    (ii) deg q(x) = deg r(x)

    q(x) = x , R(x) = x , p(x) = x2 + x, g(x) = x2

    (iii) deg r(x) = 0

    q(x) = 1 , R(x) = 1 , p(x) = x+1, g(x) = x

    Answered by Payal Singh (May 25, 2017 9:15 a.m.)
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Let a b c p be rational numbers such that p is not perfect cube . if a +bp^1/3+cp^2/3=0 then prove a=b=c=0

Posted by Sidharth Thakur (May 25, 2017 5:31 p.m.) (Question ID: 5471)

  • Answers:
  • As p is not a perfect cube. Hence p1/3 and  p1/3 , p2/3  are irrartional numbers. Then we have b p1/3 +c p2/3   as irrational and a as rational. As sum of a rational number and an irrational number cannot give us a zero as answer so all the coefficiants (a,b and c) must be zero in general.

    Answered by Shivam .G (May 25, 2017 5:19 p.m.)
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Why is some food left undigested?

Posted by Rachna gupta (May 24, 2017 2:27 p.m.) (Question ID: 5469)

  • Answers:
  • During digestion of food by products are formed that we can not digest.

    Answered by Rachna gupta (May 25, 2017 2:37 p.m.)
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Why can't our body digests certain types of food?

Posted by Rachna gupta (May 24, 2017 2:26 p.m.) (Question ID: 5468)

  • Answers:
  • Humans cannot digest certain types of food because the appropriate enzymes to breakdown the molecules, are lacking in our body.

    Answered by Payal Singh (May 24, 2017 2:36 p.m.)
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Why do we produce saliva when we see  food?

Posted by Rachna gupta (May 24, 2017 2:25 p.m.) (Question ID: 5467)

  • The process of digestion starts in our mouth when we start chewing food(in most cases). Most of the saliva helps breakdown all the starch and other compounds to sugars.

    So whenever you see and smell some delicious food your brain perceives you will eat it and hence asks the salivary glands to release the saliva in advance which we call mouth-watering.

    Posted by Payal Singh (May 24, 2017 3:48 p.m.)
  • But why is saliva produced when we see food?

    Posted by Rachna gupta (May 24, 2017 3:39 p.m.)
  • Add Comment
  • Answers:
  • The process of digestion starts in our mouth when we start chewing food(in most cases). Most of the saliva helps breakdown all the starch and other compounds to sugars. So whenever you see and smell some delicious food your brain perceives you will eat it and hence asks the salivary glands to release the saliva in advance which we call mouth-watering.

    Answered by Payal Singh (May 24, 2017 3:46 p.m.)
    Thanks (1)
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Name any two pre colonial parts of India?

Posted by Priyanshu Nandan (May 24, 2017 2:24 p.m.) (Question ID: 5466)

  • Answers:
  • Ans. Three Indian ports of pre-colonial :

    • Surat on the Gujarat coast
    • Hoogly in Bengal
    • Masulipatam on the coromandel coast
    Answered by Naveen Sharma (May 24, 2017 2:39 p.m.)
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How come alimentary canal ( 9 metres ) can be longer than humans?

Posted by Rachna gupta (May 24, 2017 2:23 p.m.) (Question ID: 5465)

  • Answers:
  • Alimentary canal is longer but fits in our body as it is of different shapes and sizes at different levels.

    Answered by Rachna gupta (May 25, 2017 2:38 p.m.)
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When did export of British cottons goods increase dramatically?

Posted by Priyanshu Nandan (May 24, 2017 2:22 p.m.) (Question ID: 5464)

  • Answers:
  • Ans. Exports of British cotton goods increased dramatically in the early nineteenth century. Produced by machines at lower costs, the imported cotton goods were so cheap that weavers could not easily compete with them. They were better in quality and cheaper in process than Indian textiles.

    Answered by Naveen Sharma (May 24, 2017 2:30 p.m.)
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Name any two pre colonial parts of India?

 

<div> </div> <div> </div>
Posted by Priyanshu Nandan (May 24, 2017 2:06 p.m.) (Question ID: 5463)

  • Answers:
  • Ans. Three indian ports of pre-colonial :

    • Surat on the Gujarat coast
    • Hoogly in Bengal
    • Masulipatam on the coromandel coast
    Answered by Naveen Sharma (May 24, 2017 2:25 p.m.)
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If a+b=5 and 3a+2b=20,  Then value of a+b is:

1) 10

2) 15

3) 20

4) 25

Posted by Sudhanshu Baranwal (May 24, 2017 10:39 a.m.) (Question ID: 5460)

  • you have already given value of a+b = 5 then what is the use of asking.

    it should be a printing mistake. you have to find value of 3a+b 

    Posted by Naveen Sharma (May 24, 2017 3:33 p.m.)
  • Add Comment
  • Answers:
  • Ooo.

    But this ques. had come in chs exam

    Answered by Sudhanshu Baranwal (May 24, 2017 2:56 p.m.)
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  • Question Must be : If a + b = 5 and 3a + 2b = 20, then 3a + b will be

    Ans. 4) 25

    a + b = 5  .............(1)

    3a +  2b =  20    .........(2)

    From (1), a = 5 - b 

    put this value in (2), we get 

    => 3( 5 - b ) + 2b = 20

    => 15 - 3b + 2b = 20 

    => - b = 5 

    => b = -5 

    put values of b in (1), we get

    => a - 5 = 5 

    => a = 10 

    Now, 3a + b = 3(10 ) - 5

    = 30 - 5 = 25

    Answered by Naveen Sharma (May 24, 2017 11:55 a.m.)
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