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How is a waterfall formed?

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Water falls over Hard rock. When it reaches the soft rock, the water starts to wear away the soft rock, this is called erosion. Over hundreds or even thousands of years, the soft rock is slowly eaten away or eroded and the river begins to cut down further into the soft rock. This makes a cliff over which the water can topple. Over time, the cliff becomes steeper as more soft rock is eroded, and deeper as bigger boulders come over the waterfall, and the ground gets beaten with more and more rocks until it creates a plunge pool. Some of the water goes under the waterfall and under cuts the soft rock. More of the hard rock begins to fall away and the waterfall slowly moves upstream.
Water falls are formed when a layer of soft rock is under a layer of hard rock. The soft rock is eroded forming a plunge pool. The hard rock fall in the plunge pool. As this keeps happening both layers stay the same and the water falls to the rivers.

Waterfalls are formed by erosional processes- Hydraulic, corrosion and attrition action. Waterfalls form where rivers meet a less resistant rock, after flowing over more resistant rock. The hard rock eventually collapses into the plunge pool at the bottom and the soft rock is eroded back.
It all starts off on top of a high elevation, such as a mountain, and when it rains the water tumbles down the mountain or hill. Sometimes there is no path for the water to follow so it must fall of the cliff. There is a layer of hard rock underneath the water and soft rock underneath that. The soft rock erodes faster than the hard rock forming a curved ledge underneath the hard rock. A plunge pool would be formed at the bottom once the water had started tumbling down. After some time, the hard rock would erode too, pushing the waterfall upstream over years.
Wherever rain falls the laws of gravity assure that one way or another it will try to reach the ocean. Normally it moves to lower ground by lines of least resistance ie trickle down, first small creeks and streams slowly gathering to meet in a valley to form a river and down to the coast. Sometimes the rainfall on rocky platforms or plateau's can not find a route down hill. This water will gather until there is enough to find the line of least resistance and cascade over the edge of the plateau in a water fall. Over the course of time the rain will gouge out a permanent watercourse at this point
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How waterfalls are formed?

The flowing water falls on the soft rock below, it wears it away and hard rock from the top of the water fall falls on the soft rock, as the hard rock falls from the top, it l

What causes waterfalls to form?

many waterfalls are formed at the edge of a slope that was part of a river. they occur when river flows over different types of rock.

How does a waterfall form?

Waterfalls are most commonly formed when a river is young at these times the channel is often narrow and deep. When the river courses over resistant bedrock, erosion happe

What causes a waterfall to form?

    Waterfall is the term for a gravitational fall of water in a river. (water fall.) It forms quite the same way as canyons: The river carves through the berg or what

Where why and how is a waterfall formed?

  Waterfalls are usually formed from lakes, rivers or big bodies of water. Why/How- the water that has been there for a while erodes away at the rock until it has a passag

How is waterfall formed?

The water runs through the same path so many times over thousands of years that it creates an indentation in the rock eventually making a waterfall.

How do waterfalls help to form gorges?

In a waterfall the river falls over a cliff edge into a deep plunge pool at the bottom, where there are weak levels of rock which have been excavated more quickly than that ov

How did waterfall form?

  A waterfall is simply a break in the geography. The water reaches a place where there is no more land in same horizontal plane. This can also be caused by earthquake or

What forms waterfalls?

A waterfall is formed where there is a difference of soft rock and hard rock. when the hard rock is on top of the hard rock, so the soft erodes quicker than the hard rock form

How the waterfalls form?

Waterfalls commonly form where water rushes down steep hillsides and quickly erodes the rocks. The height and number of waterfalls along a stream or river depends upon the typ