Fact 1: Plasma is formed by electrons separating from atoms in stars.

Fact 2: Plasma exists inside stars and in interstellar gases.

Given the two facts above, answer the question "What is formed by electrons separating from interstellar gases?" with the following options: 
- an object
 - Energy.
 - proteins
 - led lights
 - air
 - light
 - plasma
 - dust


 

       plasma  