Answer:
Mikhail Gorbachev
Explanation:
Due to the glasnost and perestroika policies, whose aim was to increase transparency in governmental institutions in the Soviet Union, that were implemented by him.
The answer to this question is oil spills for they are the usual cause of marine or aquatic organisms to die for there are factories that dump these in water because it is a way for them to expel the oil from the factories because it is much easier than to have or find a more convenient place for them to dump it. This contributes to water pollution, making aquatic organisms to die because of its chemical components.
