Carbon dioxide (CO2)
Argon (Ar)
Hydrogen (H)
Helium (He)
Answer:
sweat glands
Explanation:
sweat glands are the only ones that can produce dermcidin, Nacl, urea and ammonia.
Because lager objects have much more room for mass the smaller objects. take the earth as an example the earth is very big and has alot of mass in it which makes gravity that pulls us down when we jump up.
The answer to the question is- Fe2O3