1) describe the general trends in atmospheric carbon dioxide concentrations shown in the graph. 2) changes in carbon dioxide concentrations, shown in figure 1, are closely linked to changes in global temperature. explain how an increase in greenhouse gases can result in climate change.

3) the carbon dioxide concentrations shown in figure 1 were worked out from ice core records. explain how ice cores provide evidence for past climate change.

4) state one other source of evidence for past climate change.

ASAP please ​