Sesmic waves generated during an earthquake are measured using an intrument called a ________

Options

A. Seismograph
B. Electroscope
C. Micropscope
D. All of them

Answer

To answer the question, "Seismic waves generated during an earthquake are measured using an instrument called a ________," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Context**: The question is about measuring seismic waves generated during an earthquake.

2. **Understand the Instruments**: We need to consider the instruments mentioned:
- **Microscope**: This instrument is used to observe small objects, such as microorganisms, that are not visible to the naked eye. It is not related to measuring seismic waves.
- **Electroscope**: This device is used to detect electric charge in a body. It is also not related to measuring seismic waves.
- **Seismograph**: This instrument is specifically designed to measure the intensity and duration of seismic waves produced by earthquakes.

3. **Select the Correct Instrument**: Since the seismograph is the only instrument that measures seismic waves, it is the correct answer.

4. **Final Answer**: Therefore, the complete answer to the question is: "Seismic waves generated during an earthquake are measured using an instrument called a **seismograph**."