1. Soil Science

Soil Classification — Quiz

Test your understanding of soil classification with 5 practice questions.

Practice Questions

Question 1

Which of the following soil orders is characterized by minimal soil development and is often found in recently deposited sediments or on steep slopes?

Question 2

A soil profile exhibiting a prominent argillic horizon (accumulation of silicate clay) and moderate to high base saturation is most likely classified as which soil order?

Question 3

Which soil order is typically associated with volcanic ash parent material and is characterized by a high content of amorphous materials like allophane?

Question 4

In the USDA soil taxonomy, which diagnostic horizon is defined by the accumulation of organic matter that is dark in color and has a high base saturation, often indicative of grassland ecosystems?

Question 5

Which of the following soil orders is primarily defined by the presence of permafrost within 100 cm of the soil surface?