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  1. I

    Env.Managment Help !!

    1) Strategies for soil conservation-dry land farming & wind breaks. 2) sustainable forest managment techniques ? 3)Brief explaination on demographic transition and its limitations ? 4) North-South trade in commodities, cash crops vs food crops ? 5)Advantage & disadvantage of Green Revolution...
  2. I

    physics paper 3 doubt! please help :(!

    Need Help with : 1-use the term half-life in simple calculations, which might involve information in tables or decay curves. 2-use and describe use of a cathode-ray oscilloscope to display waveforms. 3-Explain why energy losses in cables are lower when the voltage is high ? 4-Describe an...
  3. I

    Physics Paper 3 Help !

    Not very sure but... Voltage is an informal term for electric potential difference. The amount of energy per unit charge needed to move a charged particle from a reference point to a designated point in a static electric field; voltage
  4. I

    Physics - Doubts in the syllabus

    Need Help with : 1-use the term half-life in simple calculations, which might involve information in tables or decay curves. 2-use and describe use of a cathode-ray oscilloscope to display waveforms. 3-Explain why energy losses in cables are lower when the voltage is high ? 4-Describe an...
  5. I

    Physics Help plz !!

    Could you help me with this ? 1) use and describe the use of a cathode-ray oscilloscope to display waveforms. 2) Describe experiments to show good and bad emitters and good and bad absorbers of infra-red radiation. 3) Explain why energy losses in cables are lower when the voltage is high...
  6. I

    Physics Help plz !!

    You dont get it for all years i guess. I saved it long back so i dont remember from where i got it .. Sorry ! & Ur Welcome :)
  7. I

    physics inquiry!!!

    i Need help with : 1) use and describe the use of a cathode-ray oscilloscope to display waveforms. 2) Describe experiments to show good and bad emitters and good and bad absorbers of infra-red radiation. 3) Explain why energy losses in cables are lower when the voltage is high. Thanks in...
  8. I

    Physics Help plz !!

    Look at this attachment for the question... Hope it helps ! (:
  9. I

    BIO Doubts..here..everyone!!

    In biological washing powders enzymes are used such as : Protein is broken down by protease -Helps in removal of blood stains. Fats to fatty acids and glycerol by lipase -To remove greasy stains. In food industry : Pectin is broken down by Pectinase - A fruit juice contains a lot of pectin...
  10. I

    BIO Doubts..here..everyone!!

    Could anyone help me ? -To describe the role of fungus Penicillium in the production of antibiotic penicillin ? -Why antibiotics kill bacteria but not viruses ? -Role of hormones in controlling the menstrual cycle which includes FSH, LH,progesterone and oestrogen -Implications to a species...
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