【单选题】Blasts from the Past 1.Volcanoes were destructive in ancient history. Not because they were bigger, but because the carbon dioxide they released wiped out life with greater ease. 2.Paul Wignall from t...
A.
Killing Power of Ancient Volcanic Eruptions
B.
Association of Mass Extinctions with Volcanic
C.
Calculation of the Killing Power of Older Eruptions
D.
A Mass Extinction
E.
Volcanic Eruptions That Caused No Mass Extinction
F.
Accounting for the Killing Power of Older Eruptions Paragraph 2______