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Hi again! And some questions for you RHS level 2's out there...

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  • Hi again! And some questions for you RHS level 2's out there...

    Hi! I have been away for months now, good to be back. I have moved house twice, been to the middle east, worked some horrendously long hours at work and not done much on my allotment in-between. But ho hum, such is life. I hope you are all good

    Anyone here doing/done the RHS level 2? I have my protected environments exam in two weeks (day after my birthday - eek!) and there are a few bits I am unsure about. My tutor is going to look them up for next week but I am quite keen to get my head round it now. So much to learn!!

    Anyway, can anyone tell me:

    benefits and limitations of polycarbonate and polyethylene film? (can't find much online that isn't trying to sell, rather than tell me about it!)

    what the difference is in the concentration of atmospheric gases (especially Co2) indoors and outdoors (before you have done any environmental co2 enrichment)...I have no idea on this one!

    We did a past paper exam, and it was difficult - my knowledge is there, but the way the RHS words questions is very tricky. We all got caught out on a table to list differences between indoor and outdoor factors such as co2 levels, light, air movement etc - a lot of us wrote how the protected environment can be manipulated, but it was asking for the differences before changes are made, not the effects changes would have. (if that makes sense!) Bah.

    Any help/advice/tips greatly recieved. I have done many, many exams (uni graduate) and that doens't bother me, but the wording of their quiestions is very picky and I am finding it hard to interpret.

  • #2
    Can't help you with the exam questions Buzzingtalk, but can welcome you back and wish you luck
    Granny on the Game in Sheffield

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    • #3
      I still have that RHS Encyclopedia you wanted ~ if you still want it, and can pick it up from Anglia Square area on a weekday ... PM me
      All gardeners know better than other gardeners." -- Chinese Proverb.

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      • #4
        Hi BT good to have you back.

        Your question on atmospheric gas is a variable. Outside carbon dioxide in atmosphere is 0.03% but in an enclosed enviroment it will vary greatly dependent for instance how many people are in the given space, is there any combustion process from a ciggy to a gas fire and so on. All these things produce CO2 to a greater or lesser degree and concentrations will vary from one side of the room to the other, never mind room to room. The temperature of the enclosed space will also make a difference.

        Like wise the concentration of oxygen will vary, out doors it is approx 21%. Indoors it will vary for the same reasons given above as the levels of CO2 increase the levels of available oxygen decrease.

        The rest of the gases nitrogen, argon etc are more or less inert in normal circumstances and so remain stable.

        Colin
        Potty by name Potty by nature.

        By appointment of VeggieChicken Member of the Nutters club.


        We hang petty thieves and appoint great ones to public office.

        Aesop 620BC-560BC

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        • #5
          Whatever is in the exam should have been in the teaching that you have paid your tutor for!

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