Question

{SCI.PS.1} Identify the elements most often found in living organisms.

1. H
2. O
3. C
P
5. S
6. N
7. Ca
8. Fe
9. Na
10. Ci
a. sodium
b. iron
c. calcium
d. nitrogen
e. phosphorous
Fchlorine
9. hydrogen
h sulfur
carbon
j. oxygen

Answer 1

hydrogen, oxygen, carbon and nitrogen