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.
A or d are the most reasonable answers
Archibald Murphey is considered to be the father of education as he was a pioneer in advocating educational plans and other public works proposals for the benefit of North
Explanation:
Archibald Murphey is considered to be a forerunner in advocating many developmental plans in the field of education in North Carolina. He initially served to be the professor and then studied law in Hillsborough. He was famous for his educational proposals and constitutional reforms.
He represented Orange County and became a senator. He submitted his proposals on road developments and educational plan in the legislature of North Carolina but it was completely fell into the deaf ears as they found that the plan involves huge amount.
They took over and improved the city of Timbuktu
Had a more moderate, agriculturally productive climate in the past than today, especially in Mesopotamia and the Nile valley
Citation: https://www.britannica.com/place/Fertile-Crescent