Select from: [I] global warming. [II] dry conditions. [III] temperature. [IV] wet and cold weather. [V] absence of stars. [VI] disappearance of the moon. [VII] lack of weather. [VIII] converting electricity to heat.
Given those answer options, answer the question: Fact 1: Earth 's tilt on its rotating axis causes seasons to change. Fact 2: Whatever the season wet weather and cold weather clothing is essential. Given the two facts above, earth's tilt on its rotating axis causes what?
A:
[IV]