ABOUT THE AUTHOR Raj Kumar
Raj Kumar, has worked as reader in physics for the last 10 years. He has published many a research papers and has edited about 10 text books. He is associated with the various examination bodies and is a reputed author.
ABOUT THE AUTHOR S.K. Dubey
S.K. Dubey obtained his Master's degree in Zoology from the Banaras Hindu University and thereafter doctorate from the same university. Having three decades of teaching experience at variuos levels, Dr. Duney is presently engaged in doing research on Marine and Environmental Microbiology. He has written various articles on Marine Biology and has presented them at several national and international conferences and symposia.
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