Question

Which theory, proposed by Alfred Wegener in 1912, describes the movement of the Earth's continents?

• A. Plate Tectonics Theory
• B. Continental Drift Theory
• C. Big Bang Theory
• D. Seafloor Spreading Theory

Hint:

Wegener’s idea was initially rejected but later became the foundation for modern plate tectonics.

Answer 1

The Correct Option is B

Concept: In 1912, Alfred Wegener proposed the Continental Drift Theory, which suggested that the continents were once part of a single supercontinent called Pangaea and have gradually drifted apart over geological time.
Step 1: Understand the main idea.
The theory states that:

• Continents were once joined together
• They slowly moved to their present positions

Step 2: Supporting evidence.
Wegener used:

• Fossil similarities across continents
• Matching geological formations
• Fit of continental coastlines

Step 3: Analyze the options.

• Plate Tectonics – modern theory developed later
• Continental Drift – proposed by Wegener (correct)
• Big Bang – origin of universe
• Seafloor Spreading – later supporting concept

Step 4: Conclusion.
Thus, the theory is the Continental Drift Theory.