Final answer:
Mars has a higher average surface temperature than Saturn, due to its proximity to the Sun and carbon dioxide atmosphere, although its temperatures commonly remain below freezing.
Step-by-step explanation:
The average surface temperature on Mars is higher than the average surface temperature on Saturn. Mars, having a thinner carbon dioxide atmosphere, has temperatures generally below freezing, while Saturn, being much further from the Sun, has an even colder temperature. Indeed, the temperatures on Mars can vary significantly, with equatorial temperatures ranging from an average of -135 °C at night to 30 °C during the day, due to its thin atmosphere and inability to retain heat.
The average surface temperature on Mars is generally below freezing, with temperatures ranging from -135 °C at night to 30 °C during the day near the equator. Mars has a thin atmosphere primarily composed of carbon dioxide, which is similar to Earth's atmosphere at an altitude of 30 kilometers. In contrast, Saturn has an average surface temperature of around -178 degrees Celsius, making it much colder than Mars.