TRUE OR FALSE: A healthy gingival margin is coronal to the CEJ (1-2mm).

_________________ Development meets present needs without compromising the ability of future generations to meet their needs.

A virus infects only one species. This is considered the ______ of this virus.  

A resource that is regenerated by natural processes is called a ______________  resource.

Honorlock caused me problems but I contacted IT support, figured it out and now its working! 

According to the three philosophical approaches to Environmental Ethics, life-centered Environmental Ethics is called ___________ environmental ethics.

A ____________________ analysis is a formal process for the calculation of costs and benefits of a project or course of action for decision making.

_______________, the increase of the average world temperatures is the most serious threat to biodiversity and ecosystem health.

_________________ is any addition of matter or energy that degrades the environment for humans and other organisms.

A study of the science and social aspects of how important actions affect the world is called ____________.