Soil Question
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Sarah writes a list of materials that make up soil. She cannot remember the last material to finish her list.
1. air
2. rock pieces
3. minerals
4. organic matter
5. ?
Which term best completes the list?
1. air
2. rock pieces
3. minerals
4. organic matter
5. ?
Which term best completes the list?
- pH
- water
- shells
- bedrock