If the Earth Spun on an Axis That was Perfectly

Question

If the Earth spun on an axis that was perfectly perpendicular to the equator:
A)there would be no seasonality in climate.
B)seasonality would increase at high latitudes.
C)seasonality would increase at low latitudes.
D)summers would be warmer in the Northern Hemisphere.

Accepted Answer

The tilt of Earth's axis is what causes the seasonal variations in climate. If the axis were perpendicular to the equator, there would be no angle at which the sun's rays could hit the Earth and cause different seasons. Therefore, there would be no seasonality in climate.