IUPAC definition. polymerization: The process of converting a monomer or a mixture of monomers into a polymer. An example of alkene polymerization, in which each styrene monomer's double bond reforms as a single bond plus a bond to another styrene monomer.
There is evidence to indicate the Big Bang may have resulted from another, earlier universe collapsing in on itself, rather than from expanding from a point on infinitely hot and dense material. Instead, the universe appears to be going through constant phases of expansion (as it is at present) and contraction in a never-ending cycle. This theory of universe formation, known as the Big Bounce, was first proposed almost a century ago.
There is plenty of evidence against the hypothesis that god created the Big Bang and the universe including the Earth as it is in one day. It definitely took 13.80 billion years (from the Big Bang to now) - 4.6 billion years (the Earth and Sun formed simultaneously about 4.6 billion years ago).