The word which means "can be helpful or harmful depending on the point of view" is beaver. Beaver can both have a good and a bad effect to the ecosystem. In a good point of view, beaver serves as natural filters segregating sediments from flowing to bodies of water. On the other hand, it can also cause flooding.
Answer:
I believe the answer is B
Explanation:
Answer:
The North Vietnamese attacked the US Navy in the Gulf of Tonkin. This problem lead to the USA beginning to start the war.
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The battle of Stalingrad took place in Volgograd, Soviet Union
Answer is D
