Describe the migratory patterns of early humans. What do you think was the primary reason for their migration? What was a common factor in the location of each of the first settlements?

i didn’t understand your question but archipelagos are groups of island hope this

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.