Question

what word best describes co2 and explains why we have not dealt with this problem?
cloudy
cold
smelly
invisible

Explanation:

Carbon dioxide (\(CO_2\)) is a colorless and odorless gas. The term "invisible" accurately describes \(CO_2\) as it cannot be seen with the naked eye. This property makes it difficult for people to directly perceive its presence and effects, which is one of the reasons why the problem of \(CO_2\) (such as its contribution to climate change) has been challenging to address. People may not be as immediately aware of the issues related to \(CO_2\) compared to something that is more visible or has a strong smell.

Answer:

invisible