Littering is not good

Garbage is waste material from a process that has not been selling and its unwanted existence. If the waste didn't managed properly, it can cause negative effects in many ways. For that, we should be able to manage the waste properly.

what couses it ?, how to handle it ? and who should come into play to handle it ?
Let try to discuss it together

Flooding is our problem

A flood is an overflow of water within significant amounts in the mainland. When the heavy rains was fall, much waste is blocking the flow of water and canal is too low so that canal doesn't hold  rainwater and water flooded road. More puddles and covered the roads. The street and sidewalk are invisible, everything was covered by water. And that is a flood.

why it can happen ? and how to handle it ?