Wilson's theory of movement of continents is called

Options

A. Plate tectonics
B. Continental crust theory
C. Displacement theory
D. Grand unified theory

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the name of Wilson's theory regarding the movement of continents.

2. **Identifying the Theories**: The options provided are:
- Option 1: Plate Tectonics
- Option 2: Continental Crush Theory
- Option 3: Displacement Theory
- Option 4: Grand Unified Theory

3. **Explaining Plate Tectonics**:
- The theory of plate tectonics explains how the Earth's major landforms are created due to subterranean movements.
- It was solidified in the 1960s and transformed the earth sciences by explaining various geological phenomena such as mountain building, volcanic activity, and earthquakes.

4. **Components of Plate Tectonics**:
- The Earth's outermost layer is called the lithosphere, which consists of the crust and the upper mantle.
- The lithosphere is broken into large rocky plates that float on a partially molten layer called the asthenosphere.
- These plates move relative to each other due to convection currents in the asthenosphere.

5. **Historical Context**:
- The concept of continental movement was first proposed by Alfred Wegener, known for the theory of continental drift.
- J. Tuzo Wilson contributed significantly to the development of the plate tectonics theory.

6. **Conclusion**: Based on the explanation and historical context, the correct answer to the question is **Plate Tectonics**.

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