Chapter 2.1, Problem 3R

Summary Introduction

To review:

Whether the human body has a same elemental composition as that of the earth’s crust.

Introduction:

The body of every living being is made up of the elements that are found in the earth’s crust. Seventy percent of the human body is made up of water, teeth are made of calcium phosphate, our bones are made of calcium and other trace elements are also required by the body to perform complex functions.