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.

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks

In an effort to japan recover from the devastating effects of the 1929 depression, japanese military leaders in the 1930s formed an alliance with nazi germany negotiated more trade treaties with the soviet union closed its doors to western trade adopted a policy of imperialist expansion

After world war i, how did the us economy compare to that of germany?