Which outcome occurs when rhyolitic lava cools rapidly?

💡 Explanation

The formation of obsidian occurs due to rapid cooling which limits crystallization—a process called quenching. Because the high silica content prevents crystal formation, a glassy texture results. therefore obsidian forms, rather than different textured volcanic rocks.

• Which process enhances cirque formation when freeze-thaw cycles act on fractured bedrock within a glacial environment?
• Which outcome occurs when earthworm populations exceed soil's carrying capacity?
• Which outcome follows when anticyclonic airflow amplifies near the 30° latitude regions?
• Which effect contributes to desert formation along the western coasts of continents associated with strong subtropical gyres?
• Which long-term outcome results when isostatic rebound lags behind eustatic sea-level rise?
• Which risk increases when deforestation occurs within an alluvial floodplain upslope sediment source?