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

Fact 2: Gas Ionization Losing electrons ionizes the atoms in a gas.

Given the two facts above, answer the question "You cannot have matter in a plasma state without what?" with the following options: 
- energy
 - Energy.
 - voltage
 - ionization
 - nutrients
 - light
 - heat energy
 - kinetic energy


 

    ionization     