Based on the passage, what is probably true about tsunamis?
Theo bài đọc, điều nào đùng về sóng thần?
A. Chúng có thể di chuyển nhanh với vận tốc âm thanh.
B. Chúng không thể phá hủy những con tàu ngoài khơi.
C. Chúng có thể gây chết người với những người ở gần bờ.
D. Chúng giết nhiều người mỗi năm hơn động đất.
Dẫn chứng: Đoạn cuối cùng: “Minutes later, the tsunami arrives. A large tsunami - one more than ten meters in height - can travel far inland. As it does that, it can flood the land, destroy human settlements, and kill large numbers of people.”
Tạm dịch: Vài phút sau, con sóng thần đến. Một con sóng thần lớn, có thể cao hon 10 mét, có thể vào rất sâu trong bờ. Và khi điều đó xảy ra, nó sẽ cuốn trôi đất đai, phá hủy nhà cửa công trình và giết rất nhiều người.
Chọn đáp án là: C
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The example “You cant make a silk purse out of a sows ear” is used to...
Which of the following is mentioned as one of the purposes of the Fair Labor Standards Art of 1938?
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According to the paragraph 2, what will NOT happen if one breathes the toxic air?
In which environment would you NOT expect a Pfiesteria bloom to develop?
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.
Pollution is a threat to many species on Earth, but sometimes it can cause species to thrive. Such is the case with Pfiesteria piscicida. A one-celled creature called a dinoflagellate, Pfiesteria inhabits warm coastal areas and river mouths, especially along the eastern United States. Although scientists have found evidence of Pfiesteria in 3,000-year-old sea floor sediments and dinoflagellates are thought to be one of the oldest life forms on earth, few people took notice of Pfiesteria.
Lately, however, blooms – or huge, dense populations – of Pfiesteria are appearing in coastal waters, and in such large concentrations the dinoflagellates become ruthless killers. The blooms emit powerful toxins that weaken and entrap fish that swim into the area. The toxins eventually cause the fish to develop large bleeding sores through which the tiny creatures attack, feasting on blood and flesh. Often the damage is astounding. During a 1991 fish kill, which was blamed on Pfiesteria on North Carolina’s Neuse River, nearly one billion fish died and bulldozers had to be brought in to clear the remains from the river. Of course, such events can have a devastating effect on commercially important fish, but that is just one way that Pfiesteria causes problems. The toxins it emits affect human skin in much the same way as they affect fish skin. Additionally, fisherman and others who have spent time near Pfiesteria blooms report that the toxins seem to get into the air, where once inhaled they affect the nervous system, causing severe headaches, blurred vision, nausea, breathing difficulty, short-term memory loss and even cognitive impairment.
For a while, it seemed that deadly Pfiesteria blooms were a threat only to North Carolina waters, but the problem seems to be spreading. More and more, conditions along the east coast seem to be favorable for Pfiesteria. Researchers suspect that pollutants such as animal waste from livestock operations, fertilizers washed from farmlands and waste water from mining operations have probably all combined to promote the growth of Pfiesteria in coastal waters.
What is true of Pfiesteria?
Which of the following best characterizes the organization of the passage