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Sagot :
To answer the question that is: "which factors affect a river's load", we have to understand that all the things mentioned are important. All these options (river's slope, streambed shape and volume of flow) affect the amount of energy that the river has to spend and the way the river spend that energy, so, it is right to mark the alternative d) all of the above.
Answer:
Option (D)
Explanation:
The river load is defined as the materials such as rock fragments, stones, sediments and other types of particles, which are carried by the river during its flowing stage. These particles are generally considered as the load.
A load of a river is often affected by the slope of the river, the shape of the river bed and the volume of water flow.
The slope of the river plays an essential role as the higher the slope, the higher will be the flow rate and more amount of sediments and rock fragments will be transported by the river.
The narrow type of rivers are generally faster and carries a larger amount of sediments in comparison to a broad river channel. Again, the more the volume of water flow in any river, the more it has the capacity to pick sediments and transports them from one place to another.
The lighter particles generally flow in suspension or solution, and the coarser particles are carried either by rolling, sliding and saltation process.
Hence, the correct answer is option (D).
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