please help me answer this. Please use ur own wrd.

1. What is a "normal accident" (or normal accident theory) according to Charles Perrow, and how does this apply to the Three Mile Island nuclear accident in Harrisburg, Pennsylvania and the Fukushima Nuclear Accident in Japan?

2. How would Thomas Kuhn's notion of "incommensurability" apply to debates on how to address the COVID-19 pandemic (such as mask wearing, vaccine mandates and conspiracy theories related to this crisis)?

3. How are earthquakes, floods and tsunami's seen as being "Black Swan" events, and what is problematic about this view that such disasters are "Acts of God" or "Acts of Nature," especially with regard to the Katrina Hurricane that struck the city of New Orleans?