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Factors that decrease downstream typically include reduced water flow, increased evaporation, and sedimentation. These can lead to lower water levels, diminished habitat quality for aquatic life, and decreased water temperature. Additionally, pollution and nutrient loading from upstream sources can negatively impact water quality downstream. Lastly, human activities such as dam construction and water extraction can significantly alter downstream ecosystems.
What else can I help you with?
Why does depth and width increase downstream?
Depth and width of a river typically increase downstream due to several factors, including increased water volume from tributaries, reduced gradient, and erosion processes. As water flows downstream, it erodes the riverbanks and bed, widening and deepening the channel. Additionally, sediment transport and deposition can alter the river's shape, contributing to these increases in size. Overall, the combination of hydrological dynamics and geological processes leads to a broader and deeper river downstream.
What can you say definitely about the pressure about the opposite sides of an orifice when oil is flowing through it?
When oil flows through an orifice, the pressure on the upstream side (before the orifice) is typically higher than the pressure on the downstream side (after the orifice). This pressure difference is necessary to overcome the resistance to flow caused by the orifice's size and shape. As oil passes through the orifice, it accelerates, resulting in a decrease in pressure on the downstream side according to Bernoulli's principle. Therefore, the pressure on the upstream side will always be greater than the pressure on the downstream side during flow.
What factors make doubling time decrease?
The rate of growth and, unless the relationship is exponential, the frequency of each growth cycle.
How much decrease in oxyhemoglobin end to cyanosis?
Cyanosis typically occurs when the oxyhemoglobin saturation drops below 85-90%. This decrease signifies that there is insufficient oxygen in the blood, leading to a bluish discoloration of the skin and mucous membranes. Various factors, including underlying health conditions and environmental factors, can influence the exact threshold for cyanosis.
What are the 3 factors that decrease crop productivity?
Too much, or too little: 1- Sunshine 2- Rain 3- soil fertilizer
Why does volume of load decrease as you go downstream?
erosion :P
Does gradient of a stream increase or decrease downstream?
Decrease. The source of the river is usually in a mountainous area with a steep gradient.
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.
Does wetted perimeter decrease downstream?
No, it increases as there is more water in the channel.
Why does the size of bed load decrease downstream?
The size of bed load decreases downstream due to the processes of abrasion and hydraulic sorting. As sediment is transported by the river's flow, larger particles collide with each other and with the riverbed, leading to fragmentation and size reduction. Additionally, the river's velocity typically decreases downstream, allowing smaller particles to remain suspended while larger ones settle out. This results in a gradual decrease in the size of the bed load as it moves downstream.
Does a stream's velocity increase or decrease downstream?
A stream's velocity typically increases downstream due to the accumulation of water volume and slope gradient. This leads to higher flow rates and faster-moving water.
What decreases downstream along the length of the stream?
Downstream along the length of a stream, several factors typically decrease, including water velocity, as friction with the streambed increases and the channel widens. Additionally, the concentration of dissolved oxygen often diminishes due to higher temperatures and the decomposition of organic matter. Sediment load may also decrease as larger particles settle out in slower-moving sections. Lastly, biodiversity can decline in some areas due to pollution or habitat alteration.
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.
What is the factors that may cause the decrease in ice-cream?
what is the factors that may cause a decrease in the demand of ice-cream
Why does the gradient of a river decrease downstream direction?
It doesn't decrease, it increases. It only apears to decrease because the lower course of a river is smoother. Because of waterfalls etc in the upper course, it appears to be going quicker when actually obstructions, although creating a splash, decrease spped.
What factors decrease urine output?
There are various factors which might decrease urine output. For example, if a person is dehydrated then they will urinate less.
Factors that increase or decrease maximal muscular performance?
Identify and contrast factors likely to increase or decrease maximal muscular performance.
