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.
Explanation:
2) = Bhimsen Thapa. is correct answer
Storage of consumer items. <span />
Provided land as long as worked the land 10 years or so and then the land is yours