Question
Question: The four elements called “Big-four” which make up 95% of all elements found in a living system are...
The four elements called “Big-four” which make up 95% of all elements found in a living system are
A
C, H, O, N
B
C, H, O, P
C
C, H, O, S
D
C, N, O, P
Answer
C, H, O, N