Question

which of these machine is used to remove rubbish from the surface of a river
​

Answer 1

Answer:

TRASH SKIMMER

River surface cleaning work involves collection of all kinds of floating matter in river by employing motorized machine/ equipment. The motorized machine is called as Trash Skimmer.

Answer 2

Trash Skimmer

River surface cleaning work involves collection of all kinds of floating matter in river by employing motorized machine/ equipment. The motorized machine is called as Trash Skimmer. The waste collected by Trash skimmer shall be disposed off at specified location on shoreline.

Hope it helps you!