The correct answer is option 2, Longitude.

Latitude refers to the distance of a location from the equator. It plays a crucial role in determining the climate of an area because it affects the amount of sunlight received. Areas closer to the equator receive more direct sunlight and tend to have warmer climates, while areas further away have cooler climates.

Altitude refers to the height above sea level. Higher altitudes generally have cooler climates due to the decrease in atmospheric pressure, which leads to a decrease in temperature.

Distance from the sea, option 4, is also an important factor in determining climate. Coastal areas tend to have milder and more moderate climates compared to inland areas. This is because the sea has a stabilizing effect on temperature, causing coastal areas to experience less extreme temperature variations.

Longitude, on the other hand, is not a significant factor in determining climate. It primarily affects the time of sunrise and sunset, but it does not have a direct impact on temperature or other climatic conditions.

To summarize, while latitude, altitude, and distance from the sea are important factors in determining climate, longitude does not play a significant role