(NH4)3PO4 :
N = 14 * 3 = 42
H = 1 * 12 = 12
P = 31 * 1 = 31
O = 16 * 4 = 64
-------------------------
42+12+31+64 = 149 g / mol
Hope this helps!.
When two atoms of Hydrogen combine together, or fuse, they make an atom of Helium.
Answer:
The answer is C, which is Earth's magnetosphere.