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1. Do you think life would be possible in Mars? Venus? Mercury? Why did you say so?

2. Which among the gas giants moves the fastest around the sun? Why?

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Answer:

1) The atmosphere on Venus and Mars constitutes about 95-97% carbon dioxide. Life cannot exist in such a CO2 rich atmosphere.

2) Jupiter is the fastest spinning planet in our Solar System rotating on average once in just under 10 hours. That is very fast especially considering how large Jupiter is. This means that Jupiter has the shortest days of all the planets in the Solar System.
1. The confirmation that liquid water once flowed on Mars, the existence of nutrients, and the previous discovery of a past magnetic field that protected the planet from cosmic and solar radiation, together strongly suggest that Mars could have had the environmental factors to support life.

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