Using this graph, and the following question:

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
Elements making up the human body are mostly potassium and carbon.
b
By volume, humans are 65% oxygen gas.
c
By mass, humans are 2% calcium.
d
Humans are composed primarily of water.

Answer 1

Based on the question and the provided options, the best response would likely be:

d. Humans are composed primarily of water.

This is a widely accepted fact that the human body is largely made up of water, typically around 60% to 70% of an adult's body weight. While other elements are important, the predominance of water is a critical aspect of human biology and would likely be supported by most biological data.