Answer:the following statements can be used in response to your friend's suspicions:
-We know that atmospheric carbon dioxide has increased over the past 150 years.
-Through measurements and observations, we know that CO2 levels and temperature fluctuations are directly correlated, even in prehistoric times.
-Global warming could have significant effects on agriculture in the United States.
-Sea levels will likely rise, displacing as much as 50% of the world's human population.
The correct option is option E.(All statements listed could be used)
Explanation:
Global warming is a major aspect of climate change and has been demonstrated by direct temperature measurements and by measurements of various effects of the warming.