How does a dam negatively affect animals that live downstream? Check all that apply. It decreases the water level.
It changes the sediment and silt.
It decreases the chance for flooding.
It creates a natural barrier that hides prey.
It stops some animals from being able to travel upstream.

It decreases the water level

It changes the sediment and silt

It stops some animals from being able to travel upstream

Explanation:

a is true because it know the force.

ps maybe give us more info?

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was a long, primarily nonviolent series of events to bring full civil rights and equality under the law to all americans. the era has had a lasting impact on united states society, in its tactics, the increased social and legal acceptance of civil rights, and in its exposure of the prevalence and cost of racism. in the south violence and fraud in southern elections from 1868 to 1876, which had reduced black voter turnout and enabled southern white democrats to regain power in state legislatures across the south