Question

what is waterfall ?how it is formed​

Answer 1

Answer:

waterfalls form as streams flow from soft rock to hard rock. This happens both laterally (as a stream flows across the earth) and vertically (as the stream drops in a waterfall). In both cases, the soft rock erodes, leaving a hard ledge over which the stream fall.

Explanation:

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Answer 2

A waterfall is an area where water flows over a vertical drop or a series of steep drops in the course of a stream or river.

waterfalls form as streams flow from soft rock to hard rock. This happens both laterally (as a stream flows across the earth) and vertically (as the stream drops in a waterfall). In both cases, the soft rock erodes, leaving a hard ledge over which the stream falls