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.
<span>One
type of proposed land conservation is identifying watersheds across Texas state
where it is feasible to implement brush control in order to enhance public water supplies.
This is aimed at enhancing water yield, conserve water lost to
evapotranspiration, recharge ground water and aquifers etc.</span>
the answer you are lookin for is the 1st one 3rd one and the 4th one
Because wiesel's memior was so effective it created a window between wiesel and the reader so that the reader could understand wiesel's understanding of the holocaust
