Environmental Studies is a fast growing area which relates to the study of environment in its totality with special emphasis on man and his adaptability. The present work entitled Objective Environmental Studies with Glossary has been prepared to fulfill the needs of undergraduate classes. The Multiple Choice Questions (MCQs) test a candidates aptitude. Environmental Studies is not a new subject but an extension of ecological approach that stresses upon the study of the environment in its totality. The MCQs in the book have been with great care and after an exhaustive and extensive study of pattern of multiple choice questions in the subject. The questions are precise and clear enabling the reader to make correct choice based on his understanding of the subject. Several books are published on this subject but a glossary of terms frequently encountered in environmental science in a simple to understand and comprehensive meaning to capture the understanding of the subject by the young brains, academicians, policy makers and anyone else will unveil the substance of the terminology instant. With this background a humble effort is made to collect and coalesce the terms frequently used in the form of ready to hand material. This compilation will not only open new vistas in better and fast understanding but also open new criticisms for further refinement. The present book will prove useful to the students of undergraduate classes of Indian Universities.