Which of the following best describes the differnce between a source and a mouth?
A) A source is where a river or stream originates, and a mouth is where it empites into another body of water?.
B) A source is where a river or stream empties into another body of water, and a mouth is where it originates.?
C) A source is partially surrounded by land, and a mouth is completely surrounded by land.?
D) A source is completely surrounded by land, and a mouth is partially surrounded by land.