Which soil horizon change results when earthworm introduction increases?

💡 Explanation

Increased earthworm activity causes increased mineral horizon thickness and homogeneity because bioturbation mixes soil components, therefore minerals spread rather than remain stratified, which is more common in undisturbed soils.

• Which outcome occurs when rhyolitic lava encounters groundwater?
• Which consequence results when limestone dissolution causes sinkhole formation?
• Which outcome occurs when sediment supply decreases substantially into a delta lake?
• Which mechanism causes regional metamorphism of sedimentary rocks along a subduction zone?
• Which cave formation risk increases as rainfall decreases?
• Which landscape outcome results when wind-driven deflation surpasses supply?