Use This Figure to Answer Questions 21 to 23

question 18

Multiple Choice

Use this figure to answer questions 21 to 23.

-Which panel best illustrates the most direct effect of predation?

• A) a
• B) b
• C) c
• D) d

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Definitions:

Iron Oxide

A chemical compound made of iron and oxygen, commonly found in rust and various minerals, and used in numerous industrial applications.

Soil Horizon

A layer parallel to the soil surface, whose physical characteristics differ from the layers above and beneath, often classified by distinctive features such as texture and color.

Organic Matter

Material derived from the decay of plants and animals that provides nutrients for plants and increases soil fertility.

Topsoil

The uppermost layer of soil, rich in organic matter and nutrients, critical for plant growth and agriculture.