
[ Vocabulary ]
A scientific test or procedure that is carried out under controlled conditions to answer a scientific question.
A. experiment
B. observation
C. investigation
D. field study
Select your answer:

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Other quiz:
Adjectives-Comparison, Superlative › ViewWhich is the correct order?
A. a beautiful grey sailing boat.
B. a sailing beautiful grey boat.
C. a grey beautiful sailing boat.
D. a grey beautiful sailing boat.
Grammar › View
Nobody was hurt in the accident but ……… to the car ……. quite bad.
A. the damage/was
B. damages/were
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