Chapter summary
Maintaining Air Quality, at a glance
Connect atmospheric substances to their sources, effects and possible solutions.
SEC G2 Science K223 / K225 (2027)
Quick revision
Revisit the essentials, then return to an explanation when you need it.
| Issue | Key chemical connection |
|---|---|
| CO poisoning | Incomplete combustion; reduced oxygen transport |
| Acid rain | NO2/SO2 form acids; carbonate stone reacts |
| Greenhouse warming | CO2/CH4 affect outgoing infrared radiation |
Track carbon flows in amount as well as direction: atmospheric CO2 is steady only when additions and removals balance. Biofuel combustion emits CO2 even when plant growth offsets part of the release.