What are the proportions of clay, silt, and sand shown in a typical soil profile?

A typical soil profile is often characterized by the proportions of clay, silt, and sand, which together determine the soil's texture and influence its properties such as drainage, nutrient retention, and suitability for various plants. The composition indicated in the correct choice reflects a balanced mix that emphasizes a higher percentage of sand, which contributes to good drainage and aeration, along with a moderate amount of silt that enhances nutrient availability and moisture retention.

In this context, the proportions of clay, silt, and sand in the correct answer suggest a well-structured soil profile that provides a suitable environment for plant growth. The specified 10 percent clay, 30 percent silt, and 60 percent sand create a loamy texture, which is often considered ideal for gardening and agriculture due to its balance of drainage and moisture-holding capacity. This balance aids in plant health, as it minimizes waterlogged conditions while still retaining enough moisture for root systems.

Understanding these proportions is crucial for assessing soil functionality and determining the best management practices for cultivation or conservation efforts.