What is especially worrying about Pfiesteria blooms? A. Conditions are becoming increasingly favourable for their spread B. They are fatal to humans who come in contact with them C.
Câu hỏi:
What is especially worrying about Pfiesteria blooms?
A. Conditions are becoming increasingly favourable for their spread
B. They are fatal to humans who come in contact with them
C. They have devastated the fishing industry in U.S coastal waters
D. Researchers have no idea as to exactly what causes them
Trả lời:
6. Thông tin: Lately, however, blooms – or huge, dense populations – of Pfiesteria are appearing in coastal waters, and in such large concentrations the dinoflagellates become ruthless killers… More and more, conditions along the east coast seem to be favorable for Pfiesteria.
Đáp án: A
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