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Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
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jihuygu jihuygu
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6 years ago

When a stalagmite has an oxygen-18 to ____________________ ratio that is low, the climate at the
  time the stalagmite formed was relatively ____________________ Fill in the blank(s) with the appropriate word(s).




Q. 2 -

Prior to the discovery of radioactivity in the late ____________________ century, geologists were
  able to develop a(n) ____________________ geologic time scale. Fill in the blank(s) with the appropriate word(s).




Q. 3 -

Carbon 14 is useful for archeological samples because it is effective back to approximately
  ____________________ years. Fill in the blank(s) with the appropriate word(s).




Q. 4 -

Carbon-14 dating is based on the ratio of the parent isotope ____________________ to the daughter
  isotope ____________________. Fill in the blank(s) with the appropriate word(s).




Q. 5 -

After one half-life, ____________________ of the radioactive parent atoms will have decayed to
  stable daughter atoms. Fill in the blank(s) with the appropriate word(s).
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bubsjhoff128bubsjhoff128
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6 years ago
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jihuygu Author
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#2
6 years ago
Thank you soooo very much, it was really helpful and kind of you to answer my q's
wrote...
#3
6 years ago
You're welcome, once again
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