Which word does NOT belong with the others? branch, dirt, leaf, root

Given data

• Word list: branch, dirt, leaf, root.

Concept/Approach
Identify plant parts versus non-plant items. Three are botanical parts; one is soil.

Step-by-Step reasoning
Branch – woody plant part. Leaf – photosynthetic organ. Root – subterranean plant organ. Dirt – soil/earth; not a plant part.

Verification/Alternative
'Dirt' may contain plant parts, but it is external to the plant structure.

Common pitfalls

• Choosing 'root' because it is underground—still a plant organ.

Final Answer
dirt