The weak zone of the earthquake is known as:

Options

A. Seismic zones
B. Threatening zones
C. Both (A) and (B)
D. None of these

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term used to describe the weak zone of an earthquake. This weak zone is characterized by a higher frequency of seismic activity.

2. **Identifying the Term**: The weak zone of an earthquake is commonly referred to as a "seismic zone." This term is used to denote areas that are more susceptible to earthquakes due to geological conditions.

3. **Characteristics of Seismic Zones**: Seismic zones are areas where the frequency of earthquakes is higher. These zones are crucial for understanding earthquake risks and planning construction accordingly.

4. **Precautions in Seismic Zones**: In seismic zones, it is essential to implement modern construction techniques to ensure buildings can withstand potential earthquakes. This is because earthquakes are unpredictable and can be highly destructive.

5. **Conclusion**: Therefore, the answer to the question is that the weak zone of the earthquake is known as a "seismic zone."

**Final Answer**: The weak zone of the earthquake is known as a **seismic zone**.

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