Question: In 1783, Europe was unusually cold and foggy. The rain was acidic. Which event most likely caused the unusual climate in Europe that year?
Options:
A logging company deforested millions of acres in South America.
A major earthquake and tsunami changed the path of the Gulf Stream.
A major volcanic eruption released ash and sulfur gas into the atmosphere.
An increase in the use of automobiles released more carbon dioxide into the atmosphere.
Answer: A major volcanic eruption released ash and sulfur gas into the atmosphere.