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PHYSICS

JAMB 2021 - Question 5

Physics 2021 JAMB Past Questions - Question 5: Dams are usually at the bottom because

Choose the correct answers from the options given.

Dams are usually at the bottom because

A: the water pressure exerted are strongest close to the ground

B: the water pressure is weakest close to the ground

C: water has a greater pressure close to the ground

D: . water has a lesser pressure close to the ground

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Correct Answer

Explanation

Dams are usually located at the bottom of valleys or rivers because this location provides a natural basin for water to accumulate, which is essential for creating a reservoir. Additionally, building a dam at the bottom of a valley allows for the construction of a large wall to hold back the water, creating a significant height differential that can be used to generate hydroelectric power.