B) "The problem we now face is that the atmosphere is being filling by huge quantities of human-caused carbon dioxide and other greenhouse gases."
Explanation:
This is the sentence that best explains the trend that we see in the graph. In this graph, we learn that the temperature of the world continues to rise above the 20th century average. The main idea expressed in the graph is that the temperature of the world keeps rising. This is a consequence of the huge quantities of carbon dioxide and other greenhouse gases that humans produce. Therefore, the graph is best explained by option B.
The answer is B.) "The problem we now face is that the atmosphere is being filling by huge quantities of human-caused carbon dioxide and other greenhouse gasses"
