If the Earth were struck by an asteroid 10 km in diameter,which of the following would have the most serious consequences for life on Earth?

Question

Quizplus · Accepted Answer

The dust cloud raised by the impact would have the most serious consequences for life on Earth. The dust would block out sunlight causing a drop in temperature and reduced photosynthesis, ultimately leading to the extinction of many plant and animal species. This phenomenon is known as a "nuclear winter" and is similar to the aftermath of a large-scale nuclear war. The other options (A, B, and D) would also have significant consequences but not as severe as the extinction-level event caused by the dust cloud.

If the Earth Were Struck by an Asteroid 10 Km