Methane, Butane and Propane
Source: This question is taken from the Everyday Science
Calcium oxalate
Air pressure
Methane,Butane & Propane
0.03 to 0.04% CO2
Chlorine
Cu + Ni
340 meters per second
Herd
Amylases
21% Oxygen approximately
Reflex activities
60% Nitrogen, 40%inert gases
1055 joules
Hydrogen, Helium
The scattering of sunlight by air molecules