How much has Earth's mean surface temperature increased since the early twentieth century?

Name: How much has Earth's mean surface temperature increased since the early twentieth century?
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The correct answer is B) 1.4° F (0.8°C). According to NASA, the mean surface temperature of the Earth has increased by approximately 1.4°F (0.8°C) since the early twentieth century. This increase is largely due to human activities that release greenhouse gases into the atmosphere, such as burning fossil fuels.

How Much Has Earth's Mean Surface Temperature Increased Since the Early