Which Soil Horizon Contains the Most Organic Material

question 27

Multiple Choice

Which soil horizon contains the most organic material?

• A) A
• B) O
• C) B
• D) E

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Definitions:

Natural Ecosystems

Communities of living organisms in conjunction with the nonliving components of their environment, interacting as a system.

Introducing New Species

The act of bringing a species into an ecosystem where it does not naturally occur, potentially disrupting local ecosystems.

Population Change Curve

A graph that shows how the size of a population changes over time.

Volatile

Characterized by rapid and unpredictable changes or fluctuations, often used to describe chemical substances that easily vaporize at normal temperatures or financial markets prone to rapid changes.