Yooo it's A, tributary. these are small streams connecting to a bigger lake or ocean. hope this helps, have an amazing day :)
The unconformity that is found in a geological cross section indicates that in this area erosion happened.
Erosion is a natural process in which the surface of the Earth (<span><span>soil, rock, or dissolved material</span>) gets worn down.
The cause for erosion can be wind, water, glacier ice or other natural element.
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Answer:
This area has been hit by an asteroid, and the land now has a giant hole in it.
Explanation:
