What have you learned about sea level variations? What did you learn from this exercise? How did your prediction compared to the actual changes in sea level?

False. a cultural landscape is a "geographic area that includes cultural and natural resources associated with the interactions between nature and human behavior." : )

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.

From my point of view, the answer would be a.