Paragraph 3: (Use Sources 6, 7, 8 and Wikipedia.) • Define the term “supernova” and what is thought to occur in order to produce one. • Of the major mass extinctions, which one could have been caused by a single supernova or multiple supernovae? How would these events have affected the Earth to produce that mass extinction? • Some researchers suggest that there may have been a minor mass extinction about 2.6 million years ago. Outline their hypothesis and the effects it could have had on the Earth.

Aeronautics by Geoffrey

Paragraph 3: (Use Sources 6, 7, 8 and Wikipedia.)
• Define the term “supernova” and what is thought to occur in order to produce one.
• Of the major mass extinctions, which one could have been caused by a single supernova or multiple supernovae? How would these events have affected the Earth to produce that mass extinction?
• Some researchers suggest that there may have been a minor mass extinction about 2.6 million years ago. Outline their hypothesis and the effects it could have had on the Earth.