text: 97% carbon dioxide covers venus, also to add to that theres even more difficulit clouds of highly corrosive sulfric acid on venus. On the the planet the conditions arfe far more extreme then anything humans encoouter on earth or anywhere so far. The atmospheric pressure is 90 times greater than what we have on earth. besides high presurs and unbareable heats, the weather is bad too. Erupting volcanoes, powerful earthquackes, and very frequent lighting strikes.