The common weed which grows along with every crop is

Options

A. Chenopodium
B. Amaranthus
C. Convolvulus
D. Nerium

Explanation

**Step-by-Step Solution:**

1. **Understanding Weeds**: Weeds are unwanted plants that grow alongside cultivated crops. They compete for nutrients, water, and sunlight, which can hinder the growth of the crops.

2. **Identifying the Options**: The question provides several options for common weeds. We need to analyze each option to determine which one is the most common weed that grows with every crop.

3. **Evaluating Chinopodium**: The first option is Chinopodium. This plant is classified as a herb and is not typically considered a weed. Therefore, it can be ruled out.

4. **Evaluating Amaranthus**: The second option is Amaranthus. This plant is known to have a small grass-like structure and is recognized as a common weed that grows alongside various crops. It competes for nutrients with the crops, making it a significant weed.

5. **Evaluating Convolvulus**: The third option is Convolvulus. This is also a herb that has flowers but is not as commonly recognized as a weed that grows with every crop.

6. **Evaluating Panaerium**: The last option is Panaerium. Similar to Convolvulus, it is a herb with large flowers but does not have the same widespread presence as a weed in crop fields.

7. **Conclusion**: After evaluating all the options, Amaranthus is identified as the common weed that grows along with every crop. Thus, the correct answer is Amaranthus.

**Final Answer**: The common weed which grows along with every crop is Amaranthus.

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