Given,Depth of the river =1.5 mWidth of the river =36 musing units,1 hour =60 minutes1 km =1000 mflow rate of river =3.5 km/hr=(1×60)(3.5)×1000)​ m/min=6350​ m/minThe amount of water runs into sea per minute =6350​×1.5×36=350×1.5×6=3150 The amount of water that runs into sea per minute is 3150 m3/min