in autumn,cambium is

Options

A. inactive
B. less active
C. more active
D. killed

Answer

**Step-by-Step Solution:**

1. **Understanding Cambium**: Cambium is a layer of tissue in plants located between the xylem (wood) and phloem (bark). It is responsible for the secondary growth of the plant, producing new layers of xylem and phloem.

2. **Cambium Activity in Different Seasons**: The activity of cambium varies with seasons. In spring, cambium is highly active, leading to the formation of spring wood. This is when the plant is growing rapidly due to favorable conditions.

3. **Cambium in Autumn**: As the seasons change to autumn, the conditions become less favorable for growth. The cambium becomes less active compared to its activity in spring. It does not stop functioning entirely but slows down its activity.

4. **Evaluating Options**: The question provides four options regarding the state of cambium in autumn:
- Inactive
- Less active
- More active
- Killed

Based on the understanding of cambium activity, we can rule out:
- "Inactive" is incorrect because the cambium is still functioning.
- "More active" is incorrect because it is not as active as in spring.
- "Killed" is incorrect because the cambium is still alive.

5. **Conclusion**: The correct answer is that in autumn, cambium is "less active" compared to its activity in spring.

**Final Answer**: The cambium in autumn is less active.

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