Question

Which of the following statements correctly describes the global carbon concentration between 1750 and 2012?

(a) Global carbon concentration remained relatively constant throughout the period.
(b) Global carbon concentration increased significantly due to human activities.
(c) Global carbon concentration decreased due to natural processes.
(d) Global carbon concentration fluctuated without any clear trend.

Answer 1

Global carbon concentration increased significantly due to human activities.

Step-by-step explanation:

The correct statement that describes the global carbon concentration between 1750 and 2012 is (b) Global carbon concentration increased significantly due to human activities. Reliable data and evidence from multiple sources show that the atmospheric concentration of carbon dioxide has been steadily increasing since the industrial era, primarily due to human activities such as the burning of fossil fuels and deforestation. Figure 13.9.2 illustrates this increase in greenhouse gas concentrations over the last 2,000 years and attributes the increases since 1750 to human activities in the industrial era.