Which consequence results when extensive ashfall (tephra) buries grasslands?

💡 Explanation

Tephra deposition initially introduces minerals, but long-term vegetation smothering causes anaerobic conditions that suppresses decomposition; this causes inhibited nitrogen cycle, because of reduced microbial activity; therefore soil fertility decreases, rather than enhances plant growth.

• Which outcome occurs when oceanic plate subduction stalls?
• Which atmospheric event results because of strong katabatic winds?
• Which solute concentration pattern indicates increased leaching in permafrost thaw?
• Which outcome results when shallow crust fault locking exceeds shear stress limits?
• Which outcome is observed from increased isostatic depression?
• Which mechanism causes meandering stream patterns in low-gradient landscapes following tectonic uplift?