Question

Of all the factors affecting a region's climate, which one has the largest influence? a. Elevation c. Latitude b. Longitude d. Position on a continent

Answer 1

Latitude because the closer to the equator of the earth you are, the higher the average temperature in the region is. And the further away from the equator and closer to the poles of the earth you are, the lower the average temperature the region is.

Average temperature is more or less "climate".