Run-off from pavement or smooth rock during rainfall is much greater and faster than run-off from soil or other surfaces as there is little obstruction (friction) to the water flow. These surfaces also absorb very little water, meaning that there is a larger amount of run-off.
This means that waterways can have to deal with large intakes of water in a very short amount of time, often leading to flash flooding, as the waterway can not handle such a large amount of water at once.
What help do you required from us?
Italy is the modern country
Have a nice day! :)
C. Remote sensing because the imagery is not in direct contact
Executive Branch is run by the president, the president does all the federal laws and recommends all the new ones. And the Legislative Branch is run by congress which has the house of Representatives and the Senate they main job is to make the laws, and last by not least is Judicial Branch is run by headed by i<span>nterpreting the Constitution and reviewing laws. Hope this works i had to think but it was worth it! :)</span>