Moderate
Plant & animal residues contain: ___________?
Correct answer: D. All of the above
- A. Sugar, celluloses, hemicelluloses
- B. Proteins, lignins
- C. Waxes, lipids
- D. All of the above
Explanation
Plant and animal residues contain carbohydrates such as sugars, cellulose and hemicellulose, as well as proteins, lignin, waxes and lipids. Therefore, all the listed components may occur in organic residues.
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