Which are true about changes in carbon dioxide in the Earth's atmosphere since 1860?

Question

Select the TWO correct answers. (2 points)
Responses

The increases in carbon dioxide can be explained by the Milankovitch cycle.
The increases in carbon dioxide can be explained by the Milankovitch cycle.

The changes are triggered by a new interglacial period.
The changes are triggered by a new interglacial period.

The increases in carbon dioxide are caused by human activity.
The increases in carbon dioxide are caused by human activity.

The rate of change in carbon dioxide is exponential.

Answer 1

The two correct answers about changes in carbon dioxide in the Earth's atmosphere since 1860 are:

1. The increases in carbon dioxide are caused by human activity.
2. The rate of change in carbon dioxide is exponential.

These statements reflect the well-supported scientific understanding that recent increases in atmospheric CO2 are largely due to human activities, such as the burning of fossil fuels and deforestation, and that the concentration of CO2 in the atmosphere has been rising at an accelerating rate.