Yes.
The base level is the lowest point to which a stream can erode its channel. This can be the level of the body of water into which the stream flows, such as a lake or ocean, or an artificial structure like a dam. At base level, erosion stops and sediment deposition begins.
Lake Nasser
Yes. The dam holds back water that would normally flow down the river, leading to water accumulating behind the dam: an artificial lake.
The dam retaining wall is an artificial land form.
The spillway of the Grand Coulee Dam is the HIGHEST, artificial waterfall in the world. The crest of the dam is 550 feet above the lowest bedrock.
why are the walls of a dam thickened near the base
The pressure of the water against the top of the dam wall, is much less than the pressure exerted against the bottom of the dam wall. The width of a dam wall increases to compensate for the increased water pressures at the lower level.
Resevoir
depends on the size, if its in a natural depression , install a dam, if its on level land dig a hole, and cover the bottom with clay, or dig down to bedrock,
A dam is used to make an artificial lake in a river which can be used to generate hydroelectric power or as a reservoir.
no it can not
Water pressure on the dam.