The correct order of the substances in decreasing order of conductivity of heat is
Silver>Copper>Water>Wood
Thermal conductivity is the property of a material to conduct heat.
Generally, metals are good conductors of heat while non-metals are bad conductors of heat.
Some common substances in decreasing order of conductivity of heat is given below
Silver>Copper>Gold>Aluminium>Zinc>Brass>Water>Rubber>Wood