what is the most distant point on the surface of the sea visible from an eye point 64 feet above the sea

None   they are   equally likely to occur on any plate boundary

The answer is d. none  hope this .

It just all depends on where you live at the moment

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.