Isotope is the study and application of stable and radioactive isotopes to geological processes and their time scales.
Hello!
answer:
1. Columbia
2. Venezuela
3. Peru
4. Brazil
5. Chile
6. Argentina
i hope this helps you!
Both of them are the most important cities in their countries. They are capitals and cultural, demographic and industrial centres.
<em>I believe the answer is </em><em></em><em>C</em><em>: 1829
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D! all of the others are commonly used
