The expansion of the Roman empire most likely lead to A) industrialization
B) changes in climate
C) cultural convergence
D) a single Roman language

Dall of the above all of the choices make sense

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.

Idon't  see a map but it goes to d.christianity with about 2.1 followers today