D because <span>a band of frequencies used in radio and television transmission, especially as used by a particular station.
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Answer:
I believe the year was 1946
Explanation:
Deltas are wetlands that form as rivers empty their water and sediment into another body of water, such as an ocean, lake, or another river. Although very uncommon, deltas can also empty into land. A river moves more slowly as it nears its mouth, or end.
