1. 
- The changing of liquid to a gas.
2. 
- The major source of pollution.
3. 
- Carbon dioxide and water vapor trapping heat given off by Earth.
4. 
- Layer absorbing ultraviolet rays.
5. 
- The changing of a gas to a liquid.
6. 
- Layer responsible for reflecting radio waves.
7. 
- The layer in which weather changes.
Solution. because the substances can't go back to their original form. like kool aid, when its mixed you cant separate the powder and the water again.
Elements of iodine are fluorine, chlorine, bromine, and astatine.
Answer:
4,997.9
Explanation:
just convert fluid ounces to millilters.
