On the Earth,CO₂ comprises about .039% of the atmosphere,while on Venus and Mars it makes up about 96% (by volume)of their atmospheres.

Question

Quizplus · Accepted Answer

On Earth, CO₂ makes up about 0.039% (or roughly 400 parts per million) of the atmosphere, which is significantly less than on Venus and Mars, where it constitutes about 96% of their atmospheres, making these planets' atmospheres much richer in carbon dioxide compared to Earth's.

On the Earth,CO₂ Comprises About