Construction of dams over River affect the ecological imbalance comments
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Dams are used to produce hydroelectric power. Which of these best describes the impact of a dam on the environment?
It causes air pollution.
It reduces the level of groundwater.
It causes changes in the river ecosystem.
It reduces the level of oxygen in river water.
It causes air pollution.
It reduces the level of groundwater.
It causes changes in the river ecosystem.
It reduces the level of oxygen in river water.
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