9. (b) (iii) Two problems that affect the production of power from the stations along River Tana are:
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Here is the answer to the remaining part of question 9:
9. (b) (iii) Two problems that affect the production of power from the stations along River Tana are:
Siltation*: The accumulation of silt and sediment in the dam reservoirs reduces their water storage capacity and can damage turbines, thereby lowering power generation efficiency.
Droughts*: Prolonged periods of low rainfall lead to significantly reduced water levels in the reservoirs, which directly impacts the amount of water available to drive the turbines and generate electricity.
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