Which theory explains the location of earthquakes, volcanic eruptions and newly forming mountains?

Options

A. Theory of plate tectonic
B. Theory of evolution
C. None of these
D. Both (a) and (b)

Answer

To solve the question regarding which theory explains the location of earthquakes, volcanic eruptions, and newly forming mountains, we can follow these steps:

### Step 1: Understand the Concepts
First, we need to understand what earthquakes, volcanic eruptions, and mountain formation are. Earthquakes are sudden shaking of the ground caused by the movement of tectonic plates. Volcanic eruptions occur when there is an escape of magma from beneath the Earth's crust. Mountains can form as a result of tectonic forces pushing the Earth’s crust upwards.

### Step 2: Identify Relevant Theories
Next, we look at the theories that explain these phenomena. The two theories mentioned in the question are:
- **Plate Tectonic Theory**: This theory states that the Earth's outer shell (the lithosphere) is divided into several plates that glide over the mantle. The interactions at the boundaries of these plates can lead to earthquakes, volcanic activity, and mountain building.
- **Theory of Revolution**: This theory is not typically associated with geological phenomena like earthquakes or volcanic activity.

### Step 3: Analyze the Role of Plate Tectonics
The Plate Tectonic Theory is crucial for understanding the locations of earthquakes and volcanic eruptions. Earthquakes predominantly occur at plate boundaries, where plates may collide, pull apart, or slide against each other. Similarly, volcanic eruptions often happen at these boundaries, especially at divergent and convergent boundaries. Mountains can also form at these boundaries due to the collision of tectonic plates.

### Step 4: Conclusion
Based on the analysis, the Plate Tectonic Theory is the one that explains the locations of earthquakes, volcanic eruptions, and newly forming mountains. Therefore, the correct answer to the question is:

**Answer: Plate Tectonic Theory (Option 1)**

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