Read this excerpt from a student’s essay that compares and contrasts Earth to Mars. Which of the following is NOT a true similarity? The rotational axis is inclined to the ecliptic, like Earth's, so that Mars experiences distinct seasonal weather patterns.

A particularly striking seasonal event is the annual dust storm. During summer in the southern hemisphere, large dust storms develop and obscure much of the planet's surface from view. Another regular seasonal event is the formation of clouds of carbon dioxide ice particles in the polar regions during the fall as gas starts to condense out of the atmosphere onto the growing cap.

1) Both Mars and Earth have ecliptic rotational axes
2) Both Mars and Earth have carbon dioxide ice clouds
3) Both Mars and Earth have polar regions
4)Both Mars and Earth have seasons