Question 37
Habitats and BiomesThe speed of the flow of water in a river is faster in the middle than along the banks due to
- A.differences in turbidity at different parts of the river
- B.the abundance of fishes and other organisms along the bank
- C.reduced force of gravity in the middle portion of the river
- D.resistance offered by the wall of the banks.
Show the answer and explanation
Answer: D (resistance offered by the wall of the banks.)
Explanation
Water along the banks is slowed by friction with the banks and bed, while water in the middle meets little resistance.