How does the author illustrate the harshness of "The Year Without a Summer"?
O 1. The author compares modern-day weather to the summer weather of 1816.
O 2. The author explains that Mt. Tambora's eruption was probably the largest in 1,800 years.
O 3. The author gives examples of how the lives of people in the Northern Hemisphere changed.
O 4. The author points out how other volcanic eruptions have not been as harmful as that of Mt. Tambora.