How much percentage of carbon dioxide is present in the atmosphere of Venus and Mars?

Question

Question

This question was previously asked in

CDS General Knowledge 3 Sep 2023 Official Paper

Answer 1

The correct answer is 95 - 97%.

Key Points

On Venus and Mars, carbon dioxide is the dominant component making up 95–97% of the gaseous components on these planets.
Carbon dioxide is an important gaseous component of the environment.
- It is stabilized by green plants through the process of photosynthesis. It is released during expiration by the process of respiration.

Additional Information

Venus has a large troposphere in its atmosphere.
- Within the troposphere, gas is heated from below and slowly rotates, rising near the equator and descending at the poles.
- Venus is Earth's twin planet because it has an atmosphere.
- The atmosphere of Venus contains carbon dioxide with clouds of sulfuric acid droplets.
- Nitrogen is the second most common gas in the atmosphere of Venus.
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, larger only than Mercury.