Pennsylvania Envirothon Soil Practice Test 2025 – Your Comprehensive All-in-One Guide to Success!

Question: 1 / 400

What percentage of soil volume is typically made up of solid materials?

10%

25%

45%

Soil is composed of several components, including solid materials, water, and air. Typically, the percentage of soil volume made up of solid materials, which includes minerals and organic matter, is around 45%. This percentage reflects the general composition of a well-structured soil profile, where the solid materials provide the necessary structure and nutrients for plant growth. Understanding this component is crucial for various agricultural and environmental practices, as it influences soil behavior, fertility, and the overall ecosystem. The other percentages, such as 10%, 25%, and 75%, do not accurately represent the typical solid material volume in soil, which is primarily defined and accepted by soil science research.

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75%

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