Corroboree is the aboriginal word for a gathering or meeting. Its meaning however is much more complex. It includes not just the idea of a physical bringing together of tribes, but a meeting of minds and philosophies, of gradual growth-a gathering of momentum as the tribes arrive. virtual corroboree. Project Corroboree is, very aptly, the first project on frogs.org.au to include an online meeting-ground. In the frogs.org.au Community you can share your thoughts on the corroboree frogs and disappearing frogs with users of the site.
Except for in giant molecular substances, like diamond. Van der Waals forces or hydrogen bonds. To melt or boil a simple covalent compound you only have to overcome these two forces that hold the molecules together. You don't need to break the much stronger covalent bonds that hold the atoms together in the molecules.
But, only molecules which have polar covalent bonds can do this, non polar covalent bonds cannot form a hydrogen bond. A hydrogen bond is one kind of weak bonds. Other forms of weak bonds are ionic bonds and van der Waals interaction. Weak bonds are attractions which forms easily and quickly and do not a need large amount of energy to break because they are easily broken under natural biological conditions.