Question

what is needed for matter to change from one state to another? decay movement heat electricity

Explanation:

To determine what's needed for matter to change state, we analyze each option:

• Decay involves the breakdown of matter, not state change.
• Movement doesn't directly cause state changes like solid - liquid - gas transitions.
• Heat is energy that can increase or decrease the kinetic energy of particles. For example, adding heat to ice (solid) melts it into water (liquid), and further heat turns it to steam (gas). Removing heat can cause gas to condense or liquid to freeze.
• Electricity isn't a primary factor for most common state changes of matter (like phase changes of water). So heat is the correct choice.

Answer:

C. Heat