Erosion can move sediment through water, ice, or wind. Water can wash sediment, such as gravel or pebbles, down from a creek, into a river, and eventually to that river's delta. Deltas, river banks, and the bottom of waterfalls are common areas where sediment accumulates. i hope this answers your question
The answer is "Conduct an experiment" :)
What answer you want to know comment and i will answer
Im guessing this was supposed to be a multiple choice question. The answer is: "A radio receiver accidentally picked up its energy."