What do hardwood and softwood stand for ?

Explanation

**Step-by-Step Solution:**

1. **Definition of Hardwood and Softwood:**
- Hardwood and softwood refer to two different types of wood derived from different groups of trees.
- Hardwood comes from angiospermic trees, while softwood comes from gymnospermic trees.

2. **Characteristics of Softwood:**
- Softwood is primarily derived from gymnosperms, which are trees that do not have flowers or fruits.
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