Select the most appropriate option to fill in the blank.
The scientist conducted a series of experiments to _______ his hypothesis.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. verify.
Context: In scientific research, experiments are conducted to test or prove the validity of a hypothesis. The verb that correctly conveys this is verify.
Meaning of the words:
Variable: Something that can change or vary, often used as a factor in experiments.
Variation: A change or difference in condition, quantity, or level.
Vague: Unclear or not definite.
Verify: To confirm the truth or accuracy of something.
Correct word: Verify
Reason:
Only verify makes logical and grammatical sense in the sentence, as a scientist conducts experiments to verify (confirm/prove) a hypothesis.
Final Sentence: The scientist conducted a series of experiments to verify his hypothesis.
Hence, the chosen option (4) will be correct.