Where are tropical cyclones located? \( \begin{array}{l}\text { a. Between } 30^{\circ} \mathrm{E} \text { and } 60^{\circ} \mathrm{W} \text { longitude } \\ \text { b. Between } 30^{\circ} \mathrm{N} \text { and } 30^{\circ} \mathrm{S} \text { latitude } \\ \text { c. Between } 30^{\circ} \mathrm{N} \text { and } 60^{\circ} \mathrm{S} \text { latitude } \\ \text { d. Between } 30^{\circ} \mathrm{E} \text { and } 30^{\circ} \mathrm{W} \text { longitude }\end{array} \)

The correct answer is: **b. Between 30°N and 30°S latitude** **Explanation:** Tropical cyclones, which include hurricanes and typhoons, typically form in the **tropics**, an area of the Earth surrounding the equator. This region extends approximately between **30 degrees North (30°N)** and **30 degrees South (30°S)** latitude. These areas provide the warm sea surface temperatures and atmospheric conditions necessary for the development and strengthening of tropical cyclones. - **Option a and d (Longitude-based regions):** Tropical cyclones can occur at various longitudes around the globe; longitude does not restrict their formation. - **Option c (30°N to 60°S latitude):** This range extends beyond the tropical region into the subtropics and mid-latitudes, where cyclones can occur but are not classified as tropical cyclones. Therefore, **Option b** correctly identifies the primary latitudinal range where tropical cyclones are located.