[ Vocabulary ]
What is a fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found?
A. hypothesis
B. index fossil
C. jellyfish fossil
D. hippopotamus fossil
Random Topics:
Gerund/ To Verb/ VerbQuantifiers / Prepositions of Time and Comparative AdjectivesGerunds and InfinitivesInterrogative Pronouns & AdverbsThere is, There are, Some, AnyPersonal Pronouns and VerbFuture FormsRelative PronounsComparative AdverbsIndefinite and Definite ArticlesOther quiz:
Comparatives or Superlatives › ViewCars _______ horses
A. are faster than
B. are faster
C. are the fastest
D. are fastest than
Vocabulary › View
a state in which your emotions (such as fear) are so strong that you behave in an uncontrolled way
A. Hysteria
B. Abnormal
C. Conjuring
D. great and often wild or uncontrolled activity
Modals and Advice › ViewMight they have already left for the airport?
A. Maybe
B. No
C. I don’t know
D. Yes
Time Clauses of Future › View
Don’t worry. I’ll call you ______ I open the letter with my exam results.
A. as soon as
B. if
C. unless