The Environmental Technician Passbook(R) prepares you for your test by allowing you to take practice exams in the subjects you need to study. It provides hundreds of questions and answers in the areas that will likely be covered on your upcoming exam, including but not limited to; Principles and practices of environmental planning and impact analysis; Stream, river, lake, and wetlands protection and improvement; Collection, analysis and interpretation of data; Preparation of written material; and more.