Question

how is the temperature of the earths atmosphere linked to the concentration of carbon dioxide?
as the concentration of carbon dioxide decreases, the temperature of the earths atmosphere also increases.
both the temperature of the earths atmosphere and the concentration of carbon dioxide are determined by natural factors.
the temperature of the earths atmosphere is not linked to the amount of carbon dioxide.
as the concentration of carbon dioxide increases, the temperature of the earths atmosphere also increases.

Explanation:

Carbon dioxide is a greenhouse gas. Greenhouse gases trap heat in the Earth's atmosphere. When the concentration of carbon dioxide increases, more heat is trapped, leading to an increase in the Earth's atmospheric temperature. Conversely, if carbon dioxide concentration decreases, less heat is trapped, but the relationship is generally that an increase in carbon dioxide leads to a temperature increase.

Answer:

As the concentration of carbon dioxide increases, the temperature of the Earth's atmosphere also increases.