The Upside Down

The Upside Down trivia questions

1. What is the primary atmospheric condition that defines the Upside Down's environment?
2. Which character first discovers the Upside Down exists in Season 1?
3. What biological entity serves as the gateway between worlds in the Upside Down?
4. How many days did Will Byers spend in the Upside Down before rescue?
5. What specific atmospheric phenomenon does the Upside Down mirror from Hawkins?
6. Which location serves as the Upside Down's equivalent to Hawkins Lab?
7. In Season 2, what does the Upside Down begin to infect in the real world?
8. What year was the first breach to the Upside Down intentionally created?
9. How does the Upside Down's decay accelerate following Vecna's death?
10. What chemical compound does the Upside Down soil primarily contain?