Question

On Venus and Mars, carbon dioxide forms the major components constituting 95-97% of gaseous components on these planets.

• A. True
• B. False

Answer 1

The correct option is A True

1. Venus and Mars both have more than 95-97% of their atmosphere filled with carbon dioxide.
2. Venus has not had surface water for a long time, its CO2 stays in vapor form in its atmosphere.
3. Water vapor in the atmosphere decayed over time but when exposed to sunlight, causing it to break apart and send hydrogen into space, where it was replaced by carbon dioxide, which rose from the surface.
4. Final answer :The given statement is true.