6

Set 6: Words in Context (Beginner)

Explanation

Answer: D

PASSAGE

The experiment demonstrated the _____ effects of pollution on marine life.

Which choice completes the text with the most logical and precise word or phrase?

A. beneficial
B. minimal
C. unknown
D. harmful✓ Correct

Detailed Answer Explanation

Choice D is the best answer. "Harmful" is correct because it means "causing damage or injury." The context clues in the passage indicate that this meaning best completes the sentence logically.

Why others are wrong: A ("Beneficial" means "favorable," which doesn't fit the context.), B ("Minimal" means "very small," which doesn't fit the context.), C ("Unknown" means "not known," which doesn't fit the context.).