The existence of water vapors in the current atmosphere of the planet Mars has been found in the most recent scientific research. Thus, option (b) i.e. ācurrently, there exists no water vapor in the atmosphere of Marsā is not corect.
Recent research for the first time has discovered the existence of water vapor in the atmosphere of Mars. Most of the water on Mars exists in the form of icy dirt, thin clouds, and underground, but some of its water vaporizes into the air straight by sublimation. However, the percentage of water vapors in the current atmosphere of Mars is very little which is about 0.03 percent.
While the other options are incorrect because:
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