[ Vocabulary ]
__________ is a technique in which scientists calculate the age of a sample based on the amount of remaining radioactive isotopes it contains
A. isotope dating
B. retroactive dating
C. radioactive dating
D. index fossilization
Select your answer:
Random Topics:
Stative Verbs and TensesSimple Past and Past Progressive TensesAdverb and Noun ClausesModalLinking VerbToo or EnoughVerb IdentificationGrammar (either..or.. and neither..nor..)Present, Past and Future TenseAsking and Giving SuggestionOther quiz:
Grammar and Verb Tenses › ViewChoose the sentence in present perfect tense:
A. She has visited Paris.
B. She visits Paris.
C. She will visit Paris.
D. She visited Paris.
Past Perfect Tense › View
Zara ___________ to Chile on an exchange program because she had studied Spanich in high school. (go)
A. went
B. had gone
C. had went