The 1908 Siberian meteorite explosion brought about considerable depletion of the northern hemisphere's ozone layer.

Câu hỏi :

The 1908 Siberian meteorite explosion brought about considerable depletion of the northern hemisphere's ozone layer.

A. was caused by

B. resulted in

C. brought back

D. was initiated by

* Đáp án

* Hướng dẫn giải

bring about = result in: gây ra
Chọn đáp án B

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