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This happens because in the lower course of the river, where the channel is much closer to base level, there is much more lateral erosion taking place and a lot less vertical. In the upper course, more vertical erosion takes place because the river is cutting down in an attempt to reach base level. As the river is reaching its mouth in the lower course, less vertical erosion is needed. Also because the river has a greater velocity downstream, due to more water entering the river from tributaries, there is more kinetic energy for lateral erosion to take place. This leads to more erosion in the form of abrasion, hydraulic action and cavitation which will widen the river channel.
What else can I help you with?
Does the volume of water in a river increase further downstream?
yes
Will agricultural land use increase as you mover downstream Mae Sa river?
In a typical river, yes. But in the MAe Sa, the crops and agriculture is better further upstream.
WHAT London bridge is the furthest downstream?
Tower Bridge The QE2 bridge at Dartford, where the M25 crosses the Thames is the furthest bridge downstream. There is also a tunnel here, used by traffic going in the opposite direction. The absolute last crossing is a few Km further downstream. It is the rail tunnel on the High Speed line from St. Pancras to the Channel Tunnel.
What is backwater flooding?
Backwater flooding happens when there is an obstruction downstream that causes the water further upstream to rise over the banks and into the landscape. An ice jam or channel restriction can cause backwater flooding.
Why does load particles decrease downstream?
Fine silt and mud are carried further downstream than heavier rocks and gravel. Which often results in muddy banks at the river mouth.
Why does the size of the bedload decrease and its roundness increase as you travel downstream?
Well, honey, as you travel downstream, the bedload size decreases because the heavier, larger particles settle out first closer to the source. And as for the roundness increase, well, that's just nature's way of giving those rocks a nice little spa treatment as they bump and grind their way downstream, getting smoother and rounder with each mile. So, in a nutshell, it's all about physics and erosion doing their thang as the river does its own version of a rock makeover.
What are some synonyms of the word 'occupied'?
The word 'occupied' means closed for business, closed until further notice, not available or busy with something. The term 'occupied' can thus be used with several meanings.
In a stream channel what sediment is deposited first?
Coarse sediment, such as gravel and larger particles, is typically deposited first in a stream channel due to its heavier weight and inability to remain suspended in the flowing water for extended periods of time. Finer sediment, like sand and silt, may be carried further downstream before being deposited.
What makes the size of the pebbles smaller downstream?
As pebbles are transported downstream by the flowing water, they collide with each other and with other debris, causing them to break into smaller fragments. This process is known as attrition and leads to the gradual decrease in pebble size as they travel downstream. Additionally, smaller pebbles are also more easily carried by the current, allowing them to be transported further downstream.
Why does river velocity increase downstream?
Velocity increases in a downstream direction because more sources of water combine depth and width. A constant flow of water would result in a higher river velocity.
Why does load particle size decrease downstream?
Load particle size decreases downstream due to the transport capacity of the river being higher further downstream, allowing larger particles to settle out and be deposited. Smaller particles are able to remain in suspension and be carried further downstream before settling. Additionally, erosion and weathering of larger particles can lead to their breakdown into smaller particles over time.
What does occupied japan mean?
"Occupied" means that the country, Japan in this case, has soldiers stationed there after their defeat, in this case, the United States, to keep the peace and prevent further warlike activities.
