Certified Sommelier Test 2026 – 400 Free Practice Questions to Pass the Exam

The correct answer, volcanic soils, highlights the distinctive geological features that characterize many of Victoria's wine regions. Victoria is known for its varied terroir, which significantly influences the grape varieties grown and the styles of wine produced.

Volcanic soils, formed from the weathering of ancient lava and ash deposits, are found in regions such as the Yarra Valley and Gippsland. These soils are rich in minerals and provide excellent drainage, which not only supports vigorous vine growth but also helps to produce balanced and complex wines. The volcanic influence contributes to the mineral character of the wines, often enhancing their depth and flavor complexity.

In contrast to volcanic soils, the other soil types mentioned play different roles in various regions but are not as predominant in Victoria. Sandy soils, while good for drought resistance, may not provide the same structure or nutrient retention as volcanic soils. Clay soils can retain water well but may lead to overly vigorous vine growth if not managed carefully. Alluvial soils, which are generally fertile and found in river valleys, also contribute to viticulture but are not as uniquely associated with the distinctive characteristics of Victorian wines as volcanic soils are.

Overall, the prevalence of volcanic soils in Victoria not only defines the region’s geological identity but is vital in