What name is given to the phenomenon in which the earth shakes suddenly for a very short time ?

Options

A. Lightening
B. Thunderstorm
C. Earthquake
D. Both A and B

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the name of a phenomenon where the Earth shakes suddenly for a very short time.

2. **Identifying the Phenomenon**: The phenomenon where the Earth shakes is commonly known as an "Earthquake".

3. **Explaining the Cause**: Earthquakes are caused by the movement of tectonic plates beneath the Earth's crust. These plates are constantly in motion, but sometimes they get stuck due to friction.

4. **Describing the Process**: When the tectonic plates are locked together, stress builds up over time. Eventually, this stress becomes too great, and the plates suddenly slip, causing vibrations that we feel as an earthquake.

5. **Duration of Earthquakes**: Earthquakes typically last for a very short duration, ranging from a few seconds to about a minute.

6. **Conclusion**: Therefore, the name given to the phenomenon in which the Earth shakes suddenly for a very short time is "Earthquake".

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