Question

Take Test: Homework ch 20, 21. 22, 25 Atmospheric CO, concentration Atmospherke CH, concentration 300700 275- D 500 225 400 175 1o0 Thousands of yeam ago The current concentration of carbon dioxide as 404 ppm (not shown on the figurel Use the data in the figure to determine the highest carbon diode concentration levels that occurred over the past 400,000 years Ar that point, the concentration of carbon dioxide was about %ofthe current A 45-50 5 70-95

Answer 1

The highest amount of Carbon Dioxide was found to be 800 PPM between the period of 400 and 300 thousand years ago more towards 300 years.

As compared to the present concentration of the Carbon Dioxide this concentration is 90-95% higher. Thus option C is correct.