Question

select the best evidence to support the statement that its not always easy to tell when a flood will occur. floods are one of the most common hazards in the united states. flood effects can be local, impacting a neighborhood or community, or very large, affecting entire river basins and multiple states. however, all floods are not alike. some floods develop slowly, sometimes over a period of days. but flash floods can develop quickly, sometimes in just a few minutes and without any visible signs of rain. flash floods often have a dangerous wall of roaring water that carries rocks, mud, and other debris and can sweep away most things in its path. from federal emergency management agency, \are you ready?: an in - depth guide to citizen preparedness.\

Explanation:

The statement about difficulty in predicting flood occurrence is best supported by the fact that flash - floods can develop quickly and without visible signs of rain. This shows unpredictability.

Answer:

But flash floods can develop quickly, sometimes in just a few minutes and without any visible signs of rain.