Use this graphic to answer the question. An environmentalist uses a bar graph, a diagram, and a map as part of a presentation to Congress about global warming. Based on the process outlined in the diagram, what has most likely caused the higher levels of global surface temperature since the 1980s, as shown in the bar chart? decreased ocean temperatures increased levels of greenhouse gases decreased solar and thermal radiation increased global surface temperatures

d

explanation:

        i'm fairly sure that the correct answers are 2 and 3.

        i used both my knowledge of world history and the process of elimination to obtain these answers. option 1 cannot be a possible selection because the mandate of heaven belongs to ancient chinese philosophical belief. option 4 sounds like it would benefit the region than detriment it. however, both 2 and 3 explain a potential reason for what could have contributed to the fall of the roman empire.

      hope this ! if i were you, i'd get a second opinion, because i haven't taken this course for a year. best of luck!

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the answer is a. hope this

c is your answer have a great day make the brainlest