Question

which of the following combinations of elements make up over 90% of living things?
o hydrogen, carbon, oxygen, nitrogen
o carbon, oxygen, sulfur, hydrogen
o sulfur, oxygen, carbon, phosphorus
o phosphorus, nitrogen, hydrogen, oxygen

Explanation:

The four most abundant elements in living things are hydrogen, carbon, oxygen, and nitrogen, making up over 90% of living matter.

Answer:

hydrogen, carbon, oxygen, nitrogen