Urea derivative triazines are used as

Options

A. Insecticides
B. Herbicides
C. Nematocides
D. Rodenticides

Answer

**Step-by-Step Solution:**

1. **Understanding Triazines**: Begin by defining what triazines are. Triazines are nitrogen-containing cyclic compounds, which means they have a ring structure that includes nitrogen atoms.

2. **Identifying the Use of Triazines**: The question asks about the use of urea derivative triazines. It is important to note that these compounds are primarily used in agriculture.

3. **Function of Triazines**: Triazines work by interfering with the process of photosynthesis in plants. This is a crucial point because it helps in identifying their specific application.

4. **Target of Triazines**: The triazines specifically target unwanted plants, commonly referred to as weeds. By stopping the photosynthesis process in these plants, triazines effectively control their growth.

5. **Classifying the Use**: Since triazines are used to control the growth of weeds, they are classified as herbicides. This is distinct from insecticides (which target insects) and rodenticides (which target rodents).

6. **Conclusion**: Based on the above points, the answer to the question is that urea derivative triazines are used as herbicides.

**Final Answer**: Urea derivative triazines are used as **herbicides**.

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