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    IB Question bank 3rd Edition

    Hey boss could you please email Physics, Economics and Chemistry V3 Questionbanks? Thanks in advance :D
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    Chemistry Paper 12 Discussion

    Now that its been 24 hours since this paper was taken, let's discuss the answers. For the MCQ regarding general properties of metals, did you guys write '1 and 3'? For the MCQ regarding tests for hydrogen, oxygen and carbon dioxide gas in three different jars respectively, did you choose...
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    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    Cuz for potassium, its reaction with HCl will be like... too reactive... explosive (in formal terms, it will not be 'suitable' as a method of salt preparation). The other two options will work fine.
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    EXCHANGE QUESTION BANKSSSSSSSSSSSSS

    I CAN GIVE YOU GUYS PHYSICS V2. I need ECONOMICS AND MATHEMATICS QBs
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    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    Can you please explain to me question 13 from igcse chemistry winter 2009 paper 11?
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    Biology paper 12 discussion

    Please add me.
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    Biology(0610)-Need doubt clarification(Urgent)

    Because time taken is least for option B, rate of water release must be highest for option B Interpret the graph carefully.
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    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    GUYS, which IGCSE Biology MCQ (Paper 1) papers have you'll found challenging? Anything from 1994 to 2011...
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    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    E Errr, I understand. But let me explain my point. Say the population in 1957 is 1000. If the birth rate is (approx) 23 per 1000, then the total population at the end will be 1023. However, death rate is also the same as birth rate (23 per 1000). So the final population number will be 1023 -...
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    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    Thanks, but in Q28, don't you see some tiny leaves appearing in option C? :p And in Q37, shouldn't the key be C, cuz it is only in those two years when the birth rate = death rate (meaning that net population change is zero)
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    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    Questions 28 and 37 in Nov 1994 - IGCSE Biology. PLEASE HELP
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    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    but since they grow from two DIFFERENT pieces of potato tuber, shouldn't parents be different?
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    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    Thank you so much. Also, Questions 28 and 37 in Nov 1994 - IGCSE Biology.
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    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    Firstly, thank you for helping all of us for the MCQ papers. Awesome!!! (y) 1. Got a doubt in QUESTION 10 in the paper 'Document 1 by Catalyst' (you've written all your answers in the document 'Science....docx' 2. I don't understand Question 4 - Nov 1994 - IGCSE Biology. Why A and not D...
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    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    Thanks
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    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    IGCSE Biology June 1994 Questions 4 and 23. Need help .
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    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    IGCSE Biology June 1994 Questions 4 and 23. Need explanations.
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    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    Huh? I think you read the wrong question. Please check again
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    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    Which substance is lost from the body by the kidneys, lungs and skin? Acarbon dioxide Bexcess ions C urea D water
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    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    IGCSE Biology > 2010 > Summer > qp12 > question 16... Please explain.
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