Chapter 25, Problem 3SA

Summary Introduction

To draw and explain:

The curve representing changes in ${\text{CO}}_{\text{2}}$ level in the atmosphere over past $\text{150}$ years.

Concept introduction:

${\text{CO}}_{\text{2}}$ levels change in the atmosphere from time to time. Many processes are responsible for the addition of ${\text{CO}}_{\text{2}}$ into the atmosphere and many are responsible for the reduction of ${\text{CO}}_{\text{2}}$ in the atmosphere. Due to these processes, the concentration of ${\text{CO}}_{\text{2}}$ vary in the atmosphere from time to time.