This section is an evaluation of the concept gained by the readers after going through this manuscript. It is expected that the readers will find interest in answering the questions asked on various issues of environment. The section will also help the readers to face various competitive examinations as environment has been given thrust in recent times. The readers can consider this section as a sort of ‘self appraisal approach’ as correct answers to all the questions are marked as black in the box at the end of this section.