Scenic waterfall wallpaper for Android

Scenic waterfall wallpaper app for android description: Waterfalls are 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 happens slowly while downstream the erosion occurs more rapidly.
As the watercourse increases its velocity at the edge of the waterfall it plucks material from the riverbed.
Whirlpools created in the turbulence as well as sand and stones carried by the watercourse increase the erosion capacity.
This causes the waterfall to carve deeper into the bed and to recede upstream.
Often over time the waterfall will recede back to form a canyon or gorge downstream as it recedes upstream and it will carve deeper into the ridge above it.
The rate of retreat for a waterfall can be as high as one and half meters per year.
Often the rock stratum just below the more resistant shelf will be of a softer type meaning that undercutting due to splashback will occur here to form a shallow cave like formation known as a rock shelter under and behind the waterfall.
Eventually the outcropping more resistant cap rock will collapse under pressure to add blocks of rock to the base of the waterfall.
These blocks of rock are then broken down into smaller boulders by attrition as they collide with each other and they also erode the base of the waterfall by abrasion creating a deep plunge pool or gorge.
Baatara gorge waterfall near tannourin lebanonstreams become wider and shallower just above waterfalls due to flowing over the rock shelf and there is usually a deep area just below the waterfall because of the kinetic energy of the water hitting the bottom.
Waterfalls normally form in a rocky area due to erosion.
After a long period of being fully formed the water falling off the ledge will retreat causing a horizontal pit parallel to the waterfall wall.
Eventually as the pit grows deeper the waterfall collapses to be replaced by a steeply sloping stretch of river bed.
1 in addition to gradual processes such as erosion ear