Answer:<u> </u><u>The correct option is B:</u>
<em>Each year.CO2 level increases at a faster rate. Over the past 50 years, it has nearly doubled.</em>
In "<em>An inconvenient truth</em>", A1 Gore illustrates clearly how the levels of CO2 has been increasing rapidly in the atmosphere since 1958, and proves that the increasing of the carbon dioxide emissions are a result of human actions. He explains this theory by presenting the Keeling curve, which shows that the last 14 years were the hottest ever recorded in the atmosphere, as well as other important studies proving the correlation between global warming and hurricanes.
The correct answer should b <span>The melting ice will lead to the extinction of the polar bear as a species.
While the bears certainly are in trouble, there are many papers that show that they will not just go extinct. There are many areas where the warming has actually led to a replacement of ice, from a multilayered thick one to a smaller one where the seals are found more and more. Bears in this area thrive and are better than ever. The number of bears is pretty high and they mostly adapt to the situation so their extinction is not a certainty.</span>
