universe and space
soil : our life
motion and measurement
revolutionary movement in india
hygiene - a key to healthy life
earthquakes
sub-division of journal - 2 (subsidiary books)
methods of measuring national income
leaf - external morphology
earthquake
effects of pollution on environment
red data book
classification of threatened species
sound waves are longitudinal waves
ammonia-properties and uses
compounds of nitrogen - ammonia
acid deposition
hormones in human reproduction
events in the 20th century
government efforts in pollution control
international efforts for conserving biodiversity
magnetism
option c: imaging
electro-magnetism
electronic devices
biomolecules: chemical constituents of living cells
mud and stones
consumer : satisfaction and protection
employee selection process
steps in employee selection process