Which mechanism primarily sculpts ventifacts in periglacial environments?

💡 Explanation

Aeolian abrasion sculpts ventifacts because wind-driven particles impact exposed rock surfaces eroding the softer materials and facets, therefore forming a characteristic shape, rather than effects from just salt, ice, or temperature fluctuations.

• Which phenomenon causes nutrient depletion in surface waters along the coast of South America during El Niño events?
• Which outcome occurs when wind speed falls below the threshold needed to transport sand grains in a dune landscape?
• Which phenomenon causes the meandering pattern of the low-level jet stream during northern hemisphere summers?
• Which landform feature forms when longshore drift connects an island to the mainland?
• Which outcome results from sustained creep along a transform plate boundary?
• Which phenomenon minimizes average displacement during large transform fault earthquakes?