Fact 1: Hurricanes convert heat energy into mechanical energy.

Fact 2: Hurricanes A hurricane is a type of tropical cyclone.

Given the two facts above, answer the question "What's an example of something that converts heat energy into mechanical energy?" with the following options: 
- Roller coaster
 - Tropical cyclone
 - dangerous
 - objects that have mass
 - Electric heater
 - electricity
 - Candle
 - an engine


 

  Tropical cyclone       