Which outcome occurs when excessive earthworm activity concentrates pollutants?

💡 Explanation

Pollutants are bioaccumulated due to bioturbation by earthworms; this concentrates toxins in their tissues because, rather than being broken down completely, the chemicals are moved up the trophic chain which enhances bioavailability; therefore the contaminant exposure for predators increases.

• Which outcome occurs disproportionately at 30° latitude because of global wind patterns?
• Which risk increases when coastal sediment transport stops due to a dam interrupting longshore drift?
• Which risk increases for coastal fisheries in the eastern Pacific Ocean when El Niño suppresses upwelling?
• Which outcome results when the locked zone ruptures?
• Which increased process alters cave stalactite δ18O ratios?
• Which feedback mechanism explains higher sea surface temperatures that disrupt upwelling within an ocean gyre?