Question

how do Dam result in land degradation give 3 examples
give answer according to 3 mks

Answer 1

Dams is a barrier across flowing water that obstructs directs or retards the flow often creating a lake or reservoir.
Dams is also the cause of land degradation we also know that Where there is advantage there is also disadvantage.
Dams are artificially msde by scientists when the water over loaded it takes the form of floods which spoil near by Living beings crops etc.

Answer 2

Construction of dams results in land degradation in the following ways:

1. Land’s vegetation is degraded:

• Dam construction destroys vegetation cover of the land in which it is constructed. Before construction, huge vegetation must be evacuated as it hinders the construction process. Due to this lots of animal’s losses its shelters.

2. Loosens the soil structure:

• In order to place huge pillars the land is digged with huge machineries which in turn affects the rigidity of the land due to the loosening of the soil.

3. Loss of nutrient and natural ability:

• As the land is placed into many chemical treatment such as cements, gravels, etc the soil losses it natural properties and in turn makes the land infertile.