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Answer
The river current starts wearing down the rocks in its path or on its banks. Small fragments of the rocks break off and are carried down-river. This process proceeds very slowly and usually takes many many years (thousands) for an appreciable quantity of the rock to get eroded. Answer Much depends on the speed of the water that is moving in the river. Fast moving streams and rivers when flooding can cause the movement of huge boulders. Slow moving waters can only carry suspended fine particles. Erosion refers to the moving of particles from one place to another place. Moving water provides the force necessary to move those particles and is responsible for the bulk of erosion that takes place on the planet.
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A twisted membrane with portions that breakoff to form vesicles that transport materials?
This process is called endocytosis, where the cell membrane invaginates to form vesicles that transport materials into the cell. These vesicles can then fuse with other organelles or transport materials to other parts of the cell.
What is the transport of materials against a concentration gradient called?
The process of moving materials against a concentration gradient is called active transport. Active transport generally uses a protein pump to move molecules from an area of low concentration to an area of high concentration; in order to perform an active transport, the cell must use some of its energy to initiate the reaction.
What is it called when materials move from lower to higher concentration?
Specifically Diffusion, but it is also active transport
Vesicles that will transport materials out of the cell are formed where?
Vesicles that transport materials out of the cell are formed at the Golgi apparatus in a process called exocytosis. The vesicles contain the materials to be transported and fuse with the cell membrane to release them outside the cell.
What is the process that requires the use of energy to move materials across a membrane?
Active transport is the process that requires the use of energy to move materials across a membrane. This process involves the movement of molecules against their concentration gradient, requiring energy input from the cell.
Why did cities grow on rivers?
Usually it was because the rivers were used to transport materials and goods. Saw mills were very popular way back then and many cities grew around the mills because that was were the work was. They used the rivers to float the logs and ships to transport other things. Eventually railways were used in the same way, and then of course trucks.
How do gymnosperms transport materials?
Gymnosperms transport materials through vascular tissues.
Why cities in Europe are located at the bank of the rivers?
Cities in Europe are located at the banks of rivers because the people use the rivers as transport routes to transport goods from place to place
What was transportation of the stones easier during the inundation?
During the inundation, transportation of stones was easier due to the higher water levels in rivers that facilitated the use of boats for moving heavy loads. Rivers would be swollen, allowing for easier navigation and transport of materials.
Why are cities built by rivers?
Before roads rivers canals etc where used to transport goods.the boats was easier transport than animals holding more goods aboard.
What are 3 benefits of rivers?
Drinking water, fishing and transport.
How do rivers transport water to oceans?
They sendit through lakes.
How is passive transport from active transport?
The movement of materials across the cell membrane without using cellular energy is called passive transport. The movement of materials against a concentration difference is known as active transport. Active transport requires energy.
Why are many towns and cities established near water?
Water is an easy way to transport of food, materials, etc. Rivers, lakes and streams are also sources of drinking water - and provide for agricultural needs.
What cell transport materials?
the lysomes if not what else
Are there any rivers in Suriname?
Yes there is and in one of the rivers in Suriname they transport their products to the world. I am currently doing a project on Suriname.
A twisted membrane with portions that breakoff to form vesicles that transport materials?
This process is called endocytosis, where the cell membrane invaginates to form vesicles that transport materials into the cell. These vesicles can then fuse with other organelles or transport materials to other parts of the cell.
