Question

The four elements which constitute up to 95% of all
elements found in a living system are:
a) C, H, P, O b) C, N, P, O c) C, H, O, N 4) S,O, B, C​

Answer 1

Answer:

c) C, H, O, N

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Answer 2

Answer:c) C, H, O , N

Explanation: