Differentiate between spring wood and autumn wood

Explanation

### Step-by-Step Solution:

1. **Definition of Spring Wood**:
- Spring wood, also known as early wood, is the type of wood that is formed during the spring and summer months when the growth conditions are optimal.

2. **Definition of Autumn Wood**:
- Autumn wood, also referred to as late wood, is the wood that is produced during the autumn and winter months when the growth conditions are less favorable.

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