12. (a) Name the process by which autotrophs prepare town food.(b) List the three events which occur during this process.(c) State two sources from which plants obtain nitrogen for thesynthesis of proteins and other compounds. [Foreign 2008]LAI

12. (a) Name the process by which autotrophs prepare town food.(b) Lis

1.	12. (a) Name the process by which autotrophs prepare town food.(b) List the three events which occur during this process.(c) State two sources from which plants obtain nitrogen for thesynthesis of proteins and other compounds. [Foreign 2008]LAI
Answer» a) photosynthesis b)1) conversion of light energy into chemical energy 2)splitting of water molecules into hydrogen and oxygen 3)reduction of carbon dioxide by chlorophyll c) plants get nitrogen from soil as well as from air