Scientists use the word biodiversity to describe the existence of many kinds of plants,animals and other organisms.

VOA: special.2010.05.25

This would split the states of the Confederacy and might end its very existence.

VOA: special.2009.10.22

Rising seas and warming conditions threaten its existence.

VOA: special.2010.01.19

Existence of the underground facility first revealed in September raised international suspicion over the extent and aim of the country's nuclear program.

VOA: standard.2009.10.24

Tehran denies there was any secrecy involved, and that the plant hadn't reached the point where the government needed to disclose its existence.

VOA: standard.2009.09.28

Idries says another obstacle to dentente between Iraq's Shi'ites, Sunnis,and Kurds is the existence of four-million Iraqis, living abroad, many of whom are disenfranchised.

VOA: standard.2009.10.26

questioning the existence and scope of the Holocaust, the Nazi extermination campaign against European Jews.

VOA: standard.2009.10.26

Free trade agreements top the agenda both agreements already in existence among members, and the proposed APEC agreement that would liberalize trade across the Pacific.

VOA: standard.2009.11.09

He notes that the makeup of the commission suggests it is more concerned with politics and using history and various historic facts to justify its own existence.

VOA: standard.2009.12.25

"It is relatively cheap for what you get, and it has been in existence for 60 years, so it is well established as a health service and it works,".

VOA: standard.2009.09.24