Examine Graph 1 and then answer Questions 3 through 5. Graph 1 shows the level of carbon dioxide that was in the atmosphere in prehistoric times. Scientists retrieved this data from air bubbles trapped in ancient ice in Vostok, Antarctica. Carbon dioxide levels are provided in parts per million (ppm).
As an AI language model, I do not have an image of Graph 1 to examine. Please provide the image or a description of the trends shown in the graph for me to answer the questions.
