Qual é o volume de reservas, estimadas, de hidrocarbonetos no pré-sal

por favor me, desde já agradeço

Answer is arabian desert

D.the role of religion has steadily declined in recent years.pl give me  branliest

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.

Economy is the answer