(I) The attraction between two water molecules in Xylem vessels is called 'adhesion'
(II) The number of molecules of $O_2$ absorbed is more than the number of $CO_2$ molecules released when one molecule of Triolein is completely oxidized in respiration.
(III) Bacillus mycoides is a nitrifying bacterium
(IV) Continuous system of cell walls and intercellular spaces in plant tissue is called 'Apoplast'
The correct answer is
$\begin {array} {1 1} (1)\;(II),(III) & \quad (2)\;(III),(IV) \\ (3)\;(II), (IV) & \quad (4)\;(I),(IV) \end {array}$