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Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
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Coco Coco
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6 years ago

Mass extinctions at the end of the Ordovician occurred because of
  a. dramatic changes related to glaciation.
  b. dramatic chemical changes in seawater related to meteorite impact.
  c. increased solar radiation.
  d. decreased solar radiation.
  e. none of the above
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srw23557srw23557
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6 years ago
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Coco Author
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6 years ago
Helped a lot
homework1
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Yesterday
Just got PERFECT on my quiz
Mkersey12
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2 hours ago
Thank you, thank you, thank you!
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