Quadrilateral. In Euclidean plane geometry, a quadrilateral is a polygon with four sides (or 'edges') and four vertices or corners. Sometimes, the term quadrangle is used, by analogy with triangle, and sometimes tetragon for consistency with pentagon (5-sided), hexagon (6-sided) and so on.
Some environmental scientists and specialists focus on environmental regulations that are designed to protect peopleâs health, while others focus on regulations designed to minimize societyâs impact on the ecosystem.
The field of environmental science is filled with many hard working and creative individuals who want to help protect the environment, and we have brought some of them to you. The expert interviews we feature will provide a glimpse into some of the many careers that a degree in environmental science can lead to.