renerodz says: "Dead zones are swaths of ocean that don't support life due to a lack of oxygen, and global warming is a prime suspect for what's behind the shifts in ocean behavior that cause dead zones. The number of dead zones is growing at an alarming rate, with over 400 known to exist, and the number is expected to grow. " The use of fertilizers and pesticides in agriculture contributes to the growth of dead zones. |
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