The major source of air pollution that disrupts the atmosphere’s natural cycles is the combustion of <u>fossil</u> fuels.
Answer:
emissions
Explanation:
The productions and discharge of something especially gas or radiation
4.6 billion years ago - most likely hydrogen (H2) and helium (He)
probably rich in hydrogen compounds like methane (CH4), ammonia (NH3), hydrogen cyanide (HCN), water (H2O), and formaldehyde (HCHO). Also some N2, CO2 but LITTLE or NO free oxygen.
Molecules of H2 and He move really fast, especially when warm, that they eventually all escaped Earth's gravity and drifted off into space.
