Click on the radio button in front of the correct answers to the questions.
1. The fourth planet from the sun is
Mars Jupiter Saturn
2. Mars is reddish in color due to
comets surrounding the planet solar flares oxides in the planet's crust
3. Mars extreme temperatures changes from heat to cold are due to its
rotating quickly on its axis thin atmosphere polar caps
4. The hot spots under the crust of Mars are thought to be
geysers volcanic activity hot springs
5. The surface of Mars appears to have been worn away due to
storms cooling lakes, rivers, etc. eroding the surface
6. The fact that the polar caps on Mars get bigger and smaller means that Mars is evidence of
global warming on Mars seasons on Mars meteor showers on Mars
7. The number of moons orbiting Mars is
one two three