Page 1 :
CLASS – XII, SUB – BIOLOGY, , TIME – I.30 Hrs., F.M. – 100, ,  lHkh iz'u vfuok;Z gSa &, 1), , ( Write about Important Abiotic factors. ), , 2) Conform, , ( What do you mean by Conform ? ), , 3), , ( Write about Allen’s rule. ), , 4), , ( What do you mean by Population density ? ), , 5), , ( What do you mean by logistic growth model ? ), , 6), , ( What do you mean by Commensalism ?), , 7), , ( What do you mean by Productivity ? ), , 8) Food chain, , Food web, , 9), , ( Differentiate between Food chain and Food web. ), , ( What is Carbon Cycle ? ), , 10) Biodiversity, , ( What is Biodiversity ? ), , 11) Species – Area, 12) Red list, , ( Write about Species – Area relationship. ), ( What do you mean by Red list ? ), , 13) Loss of Biodiversity, 14), , ( Write notes on Loss of Biodiversity. ), ( What do you mean by Accelerated Eutrophication ?), , 15) Bio magnification, 16) Green House effect, 17) Ozone layer, , ( What is Bio magnification ? ), ( What is Green House effect ? ), ( What do you mean by Ozone layer ? ), , 18) Green house gas, , (What do you mean by green house gas ?), , 19) Jhum cultivation, , ( What is Jhum cultivation ? ), , 20), (Write the role of people in the conservation of forest.)