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:
MOST ACTIVE
Explanation:
In the White House, she was one of the most active first ladies
A job, they left the countryside and migrated to cities and towns for new jobs.
Answer:
The British government did not want American colonists crossing the Appalachian Mountains and creating tension with the French and Native Americans there. The solution seemed simple. They issued the Royal Proclamation of 1763, which declared the boundaries of the thirteen colonies as the Appalachian Mountains.
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