🔍 Key Concepts

• Coriolis force and how it affects the rotation of large weather systems • The role of Earth’s rotation and latitude in starting cyclonic circulation • Basic conditions needed for tropical cyclone formation (heat, moisture, and spin)

💭 Think About

• Ask yourself: What actually makes a tropical cyclone spin, and how does that relate to latitude? • Are temperature and humidity near the Equator generally too low, too high, or actually very favorable for cyclone formation? • Which option describes a factor that is specifically weak or missing right at the Equator compared with 10–20° latitude?

✅ Before You Answer

• Verify which factor among the choices is directly tied to initiating rotation of the storm system. • Consider whether fronts are necessary for tropical cyclones (as opposed to mid-latitude storms). • Think about whether high heat and humidity are normally considered helping or preventing cyclone formation.