Question

Which event has been responsible for most extinctions?

A.
Asteroids striking Earth
B.
Rapid changes in climate
C.
Sudden volcanic eruptions
D.
The evolution of photosynthesis

Answer 1

The event that has been responsible for most extinctions throughout Earth's history is generally considered to be **B. Rapid changes in climate**. While asteroids, volcanic eruptions, and the evolution of photosynthesis have indeed played important roles in specific extinction events, rapid climate changes, often caused by a combination of these factors, have been a significant driver of species loss over geological time. Changes in temperature, sea levels, and habitat availability can drastically affect the survival of species.