Name four properties of Mars that are similar to those of Earth today.
a. Magnetic field; average density; atmospheric chemical composition; active water erosion of the surface.
b. Differentiated body; location in the Solar System; has weather and seasons; surface temperatures can be Earthlike.
c. Differentiated body; location in the Solar System; atmospheric chemical composition; active water erosion of surface.
d. Magnetic field; average density; has weather and seasons; surface temperatures can be Earthlike.
Answer: b. Differentiated body; location in the Solar System; has weather and seasons; surface temperatures can be Earthlike.
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