1. The problem asks which factor among aspect, altitude, distance from sea, and vegetation cover has the greatest influence on temperature in equatorial latitudes. 2. Aspect refers to the direction a slope faces, which affects sunlight exposure but is less significant near the equator where sunlight is generally direct. 3. Altitude significantly affects temperature because temperature decreases with height in the atmosphere, typically by about 6.5°C per 1000 meters. 4. Distance from the sea influences temperature by moderating climate; however, in equatorial regions, this effect is less pronounced due to consistent solar heating. 5. Vegetation cover can affect local temperature through shading and evapotranspiration but usually has a smaller impact compared to altitude. 6. Therefore, altitude is the factor that can have the greatest influence on temperature in equatorial latitudes. Final answer: b) Altitude