5.5 billion years
It means that something has ceased to exist or be present.
Yes. Mount Kilauea exists and will continue to exist for millions of years.
OCL2 does not exist as a stable gas. OCL2 is a hypothetical compound that has not been observed experimentally due to its instability.
Krypton does not exist as diatomic molecules because it is a noble gas with a full valence shell of electrons, making it stable in its monatomic form. Unlike other elements that form diatomic molecules to achieve a stable electron configuration, krypton does not need to share electrons with another atom to reach a stable state.
only when there is gravity present
Perhaps 7 to 8 billion years.
Approximately 4 billion years.
Static Variables are created when the class is loaded and continue to exist as long as the class is loaded/present in the JVM
To remain alive or in existence means to continue to exist or be present, to avoid ceasing to be, and to maintain life or survival.
Yes it did. Rome has existed from 753 BC to the present day. It doesn't have the nickname "The Eternal City" for nothing.
Depends on the context of the sentence. -present -symbolize -exist -live
groups exist to assess people
The present perfect tense of "exist" is "has/have existed."
why do small firms continue to exist despite competition from large firms
The bond order for He2 is 0. Since helium has a stable electron configuration, it does not form stable bonds with another helium atom.
is, are
They currently exist, there is no reason to think they won't continue to exist.