C. Define the following term :
(a) Alluvial Fan
(b) Flood plain
(c) Braided river
(d) Delta
(e) Distributry
Answers
Explanation:
An alluvial fan is an accumulation of sediments shaped like a section of a shallow cone,[1] with its apex at a point source of sediments, such as a narrow canyon emerging from an escarpment.
A floodplain (or floodplain) is a generally flat area of land next to a river or stream. It stretches from the banks of the river to the outer edges of the valley. A floodplain consists of two parts. The first is the main channel of the river itself, called the floodway.
braided river is a network of small channels separated by islands that are often not fixed. In other words, the river channels wander across a flat area. Braided rivers are found in places where the river carries a lot of sediment, and when it slows down and spreads out.
Deltas are wetlands that form as rivers empty their water and sediment into another body of water, such as an ocean, lake, or another river. Although very uncommon, deltas can also empty into land. A river moves more slowly as it nears its mouth, or end.
branch of a river that does not return to the main stream after leaving it (as in a delta).
a) An alluvial fan is a triangle-shaped deposit of gravel, sand, and even smaller pieces of sediment, such as silt. ... This sediment is called alluvium. Alluvial fans are usually created as flowing water interacts with mountains, hills, or the steep walls of canyons.
b) A floodplain is an area of land adjacent to a stream or river which stretches from the banks of its channel to the base of the enclosing valley walls, and which experiences flooding during periods of high discharge.[1] The soils usually consist of clays, silts, sands, and gravels deposited during floods
c)Braided rivers are characterized by multiple, unstable channel and ephemeral bars formed by intense bed-load transport, and a set of very active channel processes. They occur in a range of environments associated with high-energy, coarse-bedded rivers with limited development of riparian vegetation.
d)Deltas are wetlands that form as rivers empty their water and sediment into another body of water. ... Deltas are wetlands that form as rivers empty their water and sediment into another body of water, such as an ocean, lake, or another river. Although very uncommon, deltas can also empty into land.
e) A distributary, or a distributary channel, is a stream that branches off and flows away from a main stream channel. Distributaries are a common feature of river deltas. The phenomenon is known as river bifurcation. The opposite of a distributary is a tributary
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