1 ÄeskÃ½ Pivni PivnÃ­ (Festival Czech Beer) festival is the Biggest czech beer, festival is 17 days long and held every year In may In. 2  Prague Pilsner fest is the big festival held every year In august In.  plzeÅ ÄeskÃ½ Pivni PivnÃ­ (Festival Czech Beer) festival is the Biggest czech beer, festival is 17 days long and held every year In may In. 2  Prague Pilsner fest is the big festival held every year In august In.  plzeÅ
Quick Answer. Hydrogen bonds hold together the atoms in a water molecule. A single water molecule is made up of two hydrogen atoms and one oxygen atom.
The DNA polymer chains are held together when the bases attached to the sugar groups of the nucleotides are bound together by hydrogen connections, known as base pairing.