How does the planet Mars differ from other terrestrial planets?

Mars is smaller in size and mass than Earth and Venus. In terms of the composition of the atmosphere, it is closer to Venus: carbon dioxide, nitrogen, argon. But surface pressure and temperature are low. The change of seasons occurs as on Earth. The surface relief is more like terrestrial and Mercurian. It is assumed that there is water in the polar caps and under the soil layer. Mars has the highest mountains in the solar system.

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