Humans and Earth's Atmosphere

Nitrogen, oxygen, argon and carbon dioxide are all gases in Earth's atmosphere. But what happens when there is too much or two little of a certain gas? Readers will learn how everyday activities such as driving, heating buildings and using aerosols release harmful gases into the air and how it affects the air we breathe.

Azotul, oxigenul, argonul si dioxidul de carbon sunt toate gazele din atmosfera Pamantului. Dar ce se intampla atunci cand exista prea mult sau doua putine dintr-un anumit gaz?