Explain how the waterfalls are formed
Answers
The waterfalls are formed when there are Horizontal bands of hard rock positioned over exposed , soft rock. The soft rock is eroded faster than the hard rock and this creates a step.
Answer:
WATERFALL FORMATION PROCESS
Answering this question is really a lesson in geology (the study of rocks or the earth) and the water cycle. But before we get into those topics, let’s first walk you through the waterfall formation process.Waterfall formation is based around the basic principle that there is a watercourse (realize that water is an erosive agent) traversing over different layers of rock each with different rates of erosion. In other words, you have a river or stream flowing over hard rock (where erosion is slow) and also flowing over soft rock (where erosion is more rapid). Over time, the soft rock is further cut into by the water ultimately making the watercourse steeper beyond the hard rock layer
This steepening effect also accelerates erosion as the influence of gravity on the water increases the water’s speed (thanks to the increasing slope as a result of the accelerated erosion).
Typically, cascades and rapids, like the Waitavala Water Slide in the Fijian Island of Taveuni, are at this stage of waterfall development.
Eventually, the watercourse steepens until it’s either nearly vertical or completely vertical. At this point, you have a bon-a-fide waterfall!