Which of the following is evidence for violent activity at the center of the galaxy?

Question

Quizplus · Accepted Answer

The shell of expanding gas 3 kpc from the center is evidence for violent activity at the center of the galaxy. The gas is thought to have been expelled from the galactic center due to a massive explosion or outburst.

Answer: D
 Thousands of pulsars in the center of the galaxy are also evidence for violent activity at the center. Pulsars are rapidly rotating, highly magnetized neutron stars that emit beams of electromagnetic radiation. Their presence suggests that there are many supernovae or other explosive events occurring in the galactic center.

Option A and B are not correct as they are not directly related to violent activity at the center of the galaxy.

Which of the Following Is Evidence for Violent Activity at the Center