[ Vocabulary ]
What is an ordered arrangement of rock layers that is based on the relative ages of the rocks and in which the oldest rocks are at the bottom
A. core
B. geologic column
C. hole
D. sink hole

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Modal Verbs and ConditionalsModals Posibility and ProbabilityComparatives ( adj/ adv)Preposition and AdjectiveLinking Words and PhrasesAdverbs and PhrasesSimple Verb TensesPast Perfect vs Past SimpleModals and PrepositionFuture Continuous TenseOther quiz:
Phrasal Verbs › ViewIt’s a very busy airport. There are planes _____ or landing every few minutes.
A. going up
B. taking off
C. getting up
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Vocabulary and Grammar › View
What is the synonym of “destroy”?
A. Build
B. Ruin
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Grammar › ViewI’d ___ you to reconsider your options.
A. advice
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Grammar › View
___ is bad for your health.
A. Smoking
B. Smoke
C. Smokes
D. Smoker
