Question 2
Using this graph, and the following question:
1.Carbon is the basic building block for all forms of life on ...
After reviewing the graphic, select the best response based on that data shown.
a
By volume, humans are 65% oxygen gas.
b
Elements making up the human body are mostly potassium and carbon.
c
Humans are composed primarily of water.
d
By mass, humans are 2% calcium.