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Because attrition has occured which makes rocks and pebbles more rounded. Whilst this happens the rocks will also become slightly smaller
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∙ 12y ago
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.
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Do mountains increase or decrease in size?
Mountains can both increase and decrease in size over time. Factors such as tectonic plate movement, erosion, and volcanic activity can lead to the growth or reduction of mountain size. Overall, the net effect of these processes determines whether a mountain increases or decreases in size.
What is the factor most likely to result in a decrease in the size of a specific population is?
An increase in predation pressure or a decrease in food availability are factors most likely to result in a decrease in the size of a specific population. These factors can lead to increased mortality rates and reduced reproductive success, ultimately causing the population to decline in numbers.
Explain the relationship between particle size and percolation rate?
Smaller particle sizes generally result in faster percolation rates because there is less resistance to the flow of liquids through the smaller spaces between the particles. Larger particles create more void spaces and can slow down the percolation rate as the liquid has to travel through these larger spaces. Therefore, finer particles allow liquid to flow more quickly compared to coarser particles.
Factors that affect the size of ceiling joists?
The size of ceiling joists is primarily influenced by the span they need to cover and the load they must support. Other factors include the type of wood used for the joists, the spacing between joists, and any additional load considerations like heavy fixtures or storage. Local building codes and regulations also play a role in determining the size of ceiling joists.
What factor will most likely result in an increase in the size of an animal population?
An increase in the availability of food, a decrease in predation pressure, or an improvement in reproductive success are factors that can lead to an increase in the size of an animal population.
What affects Bed load particle size?
what is bed load particle size
Does river load size decrease?
The size of the pebble will decrease down stream because the further downstream you go the quicker the river velocity. This means there will be more abrasion against the sides and bed of the river and the friction will be greater, this wears away the river load making it decrease in size. Increase velocity means that bigger material will be picked up by the river and carried as river load. More load in the river and increased size of load will mean more attrition and the river load will keep colliding into each other smoothening and rounding their shape. Brap brap !!
The explaination of the Bradshaw model?
The Bradshaw model is a geographical model made in 1978, by Proffesor Michel Bradshaw, which describes how a river's characteristics vary between the upper course and lower course of a river. It shows that channel width, channel depth and the wetted perimeter increase downstream. The Bradshaw Model shows how certain elements of a river increase in size or amount in their journey downstream, while some decrease such as the load particle size.
What do you decrease to speed up a chemical reaction?
Particle size
Why does bed load decrease in size?
The bedload becomes smaller when the river is flowing downstream, and the rocks also become smaller, smoother and rounder due to attrition and abrasion. (The reason the flow slows down is because the energy of the flow decreases.)
Why why does bed load change as it goes downstream?
The size of the pebble will decrease down stream because the further downstream you go the quicker the river velocity. This means there will be more abrasion against the sides and bed of the river and the friction will be greater, this wears away the river load making it decrease in size. Increase velocity means that bigger material will be picked up by the river and carried as river load. More load in the river and increased size of load will mean more attrition and the river load will keep colliding into each other smoothening and rounding their shape. Brap brap !!
Why does load vary downstream?
This is the amount of load a river can carry. Generally, the load quantity will increase with discharge and velocity because rivers of higher discharge and velocity have more energy so will be able to carry more load. Therefore, load quantity increases downstream. Also, small particles require less energy to be carried so as the load size decreases, quantity increases
What is the difference between particle size and crystallite size?
crystallite is the average size of the particle whereas the particle size denotes the individual size of the particle.
What is a horizontal bead mill?
its a milling machine used to decrease the particle size of whatever is being milled. Commonly used to decrease particle size of pigments within paints. It uses beads(glass or zirconium) within a tube that is water cooled and this is rotated.the paint goes in the tube and the particles are broken down by the beads.
What is the effect of particle size on angle of repose?
As Particle size increases the angle is repose decrease. Reason being, smaller particles have dominant cohesive and adhesive forces as compared to particle weight whereas in bigger particles gravity plays a dominant role so less repose angle.
When a stream flows down into a basin loses capacity and starts dropping its load which size particle would be dropped first?
Biggest first.
How do the mass and size of an alpha particle compare with mass and size of beta particle?
The mass and size of an alpha particle compare with the masa and size of beta particle in the sense that the alpha particle is significantly larger in both size and mass that the beta and gamma particles. This is why it is called the alpha particle.
