what might be q negative consequence of building a dam such as the Three Gorges Dam to prevent flooding.​

Answer they are produced by collision of tectonic plates;

F=31 because you subtract 39-8

When a lake, river or other aquatic  system  becomes  eutrophic, it can have serious negative effects on other organisms like fish, birds and even people.if an algal bloom is so bad that it causes wide-spread death  in  the  water, the organisms that die will all sink to the bottom and start to decompose.

True the answer is true