What are the atmospheres of Mars and Pluto like?
I am in 8th grade and we are currently learning about the solar system. I was wondering if you could please tell me if you could tell me what the atmosphere is like on Mars and also on Pluto? Thank you! The atmosphere of Mars is made up of 95% carbon dioxide, 3% nitrogen and 1.6% argon. To compare, the Earth’s atmophere is made of 78% nitrogen, 21% oxygen and 1% argon. What’s the big difference? Life. The plants on earth convert carbon dioxide to oxygen, which is why our planet has so much of it. Mars’ atmosphere is also much thinner than ours. The surface pressure on Mars is only 0.7% of the average surface pressure at sea level on Earth. This means that there is much much less gas in Mars’ atmosphere. The atmospheric pressure also changes seasonally on Mars, because the temperature is cold enough (about -65 C) that some of the carbon dioxide freezes (actually it ‘sublimes,’ or goes straight from gas to solid) during the winter and “snows” onto the polar cap. This means there’s dramat
