Which is the first step that geologists must do to compare rock layers at distant locations?

It would be tomatoes i believe

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.

ddd    idk or c

His main goal was  the modernization and westernization of turkey