Fact 1: Electrical current running through a wire causes that wire to heat up.

Fact 2: High currents allow too much power, or electrical energy to be wasted in wires in the form of heat.

Given the two facts above, answer the question "How does energy get wasted in a wire?" with the following options: 
- carbon dioxide
 - It decreases
 - scattered light
 - it needs them
 - to move people
 - Evaporation
 - sweating
 - It heats up


 

        It heats up 