8 CÂU HỎI
What does the passage mainly discuss?
A. Marine pollution and its many forms
B. Noise and its disruptive effects on marine life
C. Various kinds of harmful pollutants
D. The end of the “dilution” era
The word "negligible" in paragraph 1 is closest in meaning to ____________.
A. serious
B. insignificant
C. unpredictable
D. positive
It can be inferred from paragraph 2 that the “dilution” policy is related to __________.
A. dealing with the problems of water pollution
B. helping the ecosystem of the oceans flourish
C. neglecting the effects of dumping trash into the oceans
D. treating harmful materials in the oceans properly
The word "they" in paragraph 4 refers to ______.
A. ocean’s depths
B. man-made pollutants
C. marine organisms
D. the oceans
The word "spawn" in paragraph 5 can be best replaced by ______.
A. appear
B. prevent
C. produce
D. limit
According to the passage, nitrogen-rich fertilizers ______.
A. are created by massive blooms of algae
B. cause a shortage of oxygen in the ocean water
C. do not relate to the disappearance of marine life
D. cannot be found inland
Which of the following statements is NOT supported in the passage?
A. Many pollutants deposited in the oceans finally become part of the global food chain.
B. It is apparent that the oceans have been polluted for a long time.
C. Industrial wastes and agricultural run-off are blamed for the degradation of the oceans.
D. The oceans in the past were more contaminated than they are now.
Whales and dolphins are mentioned in the final paragraph as an example of marine creatures that ______.
A. can communicate with each other via sound waves
B. can survive earthquakes because of their large bodies
C. suffer from loud or persistent sounds at sea
D. are forced to migrate because of water pollution