What distinguishes the Brundtland Commission’s definition of sustainable development from the one proposed by the International Union for the Conservation of Nature, the United Nations Environment Programme, and the World Wide Fund for Nature?

The correct answer should be brand c.

Its led to migrationits led to death 

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.