Options :
  1. is a normal process that converts dry land into marshes
  2. is slowed by the presence of phosphate and nitrate fertilizers
  3. is characterized by an excess amount of oxygen in large bodies of water
  4. is characterized by a rapid increase in the size of bacterial population
Answer and Explanation :-

Answer: Option 4


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Life is like a recycling center, where all the concerns and dramas of humankind get recycled back and forth across the universe. But what you have to offer is your own sensibility, maybe your own sense of humor or insider pathos or meaning. All of us can sing the same song, and there will still be four billion different renditions.
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