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  1. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Galvanizing is the electroplating with a more reactive metal e.g zinc galvanizing on iron buckets,while sacrificial protection is attaching blocks of more reactive metal to one metal as far as i know.Both are fundamentally the same but in galvanizing electroplating is involved.
  2. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Well,the cow returns nitrates to the soil via egestion,urination.By the deamination of amino acids urea is formed and when it is passed out it is present in the soil where the freely present nitrifying bacteria act up on the matter and decompose it to form Nitrate(NO3-) ions,which enter the...
  3. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    No it wont as far as i know..its basically the same thing a bit more elaborated.PS.where did you get these papers?
  4. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Only Syphillis and HIV are included in our syllabus.Detail depends wholly on the question and its marks.
  5. asadalam

    Maths, Addmaths and Statistics: Post your doubts here!

    Part e?
  6. asadalam

    Maths, Addmaths and Statistics: Post your doubts here!

    It'll take less time than you think in solving the past papers.You dont have to attempt every single question especially in P1 while practicing since they are basic questions.Try to solve the long questions in P2 in as little time as possible,and once you've done some question types e.g of...
  7. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    How is the answer C?Why not B?
  8. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Bauxite(al203) is purified into alumina by dissolving it in NaOH and precipitating Aluminium Hydroxide.It has a very high melting point(2800 C),and thus electrolyzing the salt would take up a lot of energy.Hence an impurity,molten cryolite Na3AlF6,is added to lower the mp to around 800 C.It is...
  9. asadalam

    CIE O LEVELS Results Oct/Nov 2013 Session

    Lol,i didn't, i was just unsatisfied with the my may/june result last year :P
  10. asadalam

    O Level Oct/Nov 2013 Results!! 12 days to go..!

    What were the subs?
  11. asadalam

    O Level Oct/Nov 2013 Results!! 12 days to go..!

    Kia hoa?
  12. asadalam

    Maths, Addmaths and Statistics: Post your doubts here!

    Can someone explain (b)?
  13. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    How is the answer B?Shouldn't it be D? V/R=I 6/3=2 2/2(equal resistance by the resistors)=1 A in the ammeter :/
  14. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Have you tried https://www.khanacademy.org/
  15. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    It is questioned in past papers, e.g in the Oct/Nov 2004 ATP Q1,you can find that the question is related to tubers.Try looking hard enough in the Syllabus ;)
  16. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Some plants like potatoes have underground 'reserves' filled with starch,called tubers.If the plant above ground is damaged or even cut off,the tubers use the reserve food to make a new plant,which is genetically identical to the previous plant.
  17. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    Yeah ,there's a lot of unnecessary knowledge,like Corolla,Clitoria,Calyx and other fancy names,but you dont have to learn them.Just know that how pollination is brought about,e.g rubbing on anther,then pollen rubbing off on stigma etc.We have to give general answers not refer to specific parts...
  18. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    The capacitor starts charging and the bulb also lights up along with it as long as switch is closed.However if switch is open the capacitor will provide the bulb with potential difference for some time,but it will become dim and then stop working.And it lights up continuously if the voltage is...
  19. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    It really depends on how you view the question,but i guess its a pretty vague question.Either way,i just showed you the correct way the came into my mind,which turned out to be right.
  20. asadalam

    Biology; Chemistry; Physics: Post your doubts here!

    It's pretty simple yar.The question states :What is the probability that Kelvin does not choose either black trousers or a red shirt So we just have to remove the options in which he wears clothes that have either black trousers or a red shirt i.e combinations of BY,BR,GR(Gray trousers red...
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