How could the dam affect the resources of the local
watershed? check all that apply.
fish would not be able to migrate up the river to
reproduce.
sediment carried by the flowing river would get
trapped.
there would be more space for forest growth.
a. the number of habitats for local wildlife would
increase.
birds that depend on fish may go hungry.

4al + 3o2 → 2al2o3 what does the "3" in front of o2 stand for? a) it indicates that there are 5 oxygen atoms after you add the coefficient and the subscript. b) it indicates that that there are are total of 6 oxygen atoms all bonded together as a single molecule. c) it indicates that there are 3 oxygen molecules chemically bonded to each other in the reaction. d) it indicates that there are 3 separate oxygen molecules in the reaction.