16. The author uses the events listed in lines 77–79 primarily

  • F. show how weather-related disasters threatened the
    survival of Western civilization.

  • G. criticize subsistence-level agriculture as being too
    dependent on the weather.

  • H. illustrate how environmental determinism operated
    in the Little Ice Age.

  • J. suggest the part that climate shifts may have had
    in producing modern Europe.