Câu hỏi:
18/03/2020 3,039* 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 from 43 to 50.
Most volcanoes are found along an imaginary belt, called the Ring of Fire, that encircles the Pacific Ocean. However, volcanic activity takes place in many far-flung regions of the world such as Hawaii, Iceland, Europe, and even the floor of the earth’s oceans. The leading theory as to why volcanic activity, as well as earthquakes, takes place when and where it does is called the theory of “plate tectonics”. The theory holds that the outer shell of the earth is divided into many different rigid sections of rock, called plates. These plates are not static, they are in continuous motion over a layer of partly melted rock. While their movement may appear insignificant, at only several inches per year, it is not. Indeed, the collisions between plates caused by this almost imperceptible movement can have catastrophic consequences. Volcanic activity and earthquakes are concentrated near the boundaries of these giant, moving plates.
The majority of volcanoes are formed at te point where two plates collide. One of the plates is forced underneath the other. As the plate sinks, the earth’s heat and the friction of the movement cause a portion of the sinking plate to melt. This melted portion of plate is called magma, and when it reaches the earth’s surface it becomes a volcano. Volcanoes can also be created when two plates begin to diverge. Then, magma from below the earth’s crust moves up to fill the void between the two plates. Large quantities of lava spill out from the void. Volcanoes of this type usually are found not on land, but on the ocean floor. In extreme instances this can lead to the formation of gigantic, sunken mountain ranges like Mid-Atlantic Ridge that spans nearly the entire length of the Atlantic Ocean. The theory of plate tectonics also explains why some volcanic activity takes place so far from any known plate boundaries. Basically, these volcanoes are the result of huge column of magma, or plumes, that rise up and break through the surface of the earth.
The Ring of Fire is_________.
Sách mới 2k7: 30 đề đánh giá năng lực DHQG Hà Nội, Tp. Hồ Chí Minh, BKHN 2025 mới nhất (600 trang - chỉ từ 160k).
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Trả lời:
Câu đề bài: Vành đai lửa Thái Bình Dương là ______.
Đáp án B. Nơi tập trung nhiều núi lửa nhất
Các đáp án còn lại:
A. Miền trung - Đại Tây Dương
C. Một hòn đảo của Thái Bình Dương
D. Hawaii
Thông tin trong bài:
Most volcanoes are found along an imaginary belt, called the Ring of Fỉre, that encircles the Paciftc Ocean.
—» Hầu hết các núi lửa được tìm thấy dọc theo một vành đai tưởng tượng, được gọi là Vành đai lửa, bao quanh Thái Bình Dương.
Đã bán 152
Đã bán 114
Đã bán 132
Đã bán 47
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
* Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The fire was believed to have been caused by an_______ fault.
Câu 2:
* Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
His ability_________mathematics in a short time is wholly admirable.
Câu 3:
* Mark the letter .4, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
The teacher had his students use their laptops to surf the Net for resources in his class,
Câu 4:
* Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions.
Buying clothes are often a very time-consumine practice because those clothes that a person likes are rarely the ones that fit him or her.
Câu 5:
* Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
If I hadn’t stayed up so late last night, I_______so tired this morning
Câu 6:
* Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions.
We have such a lot of bills to pay we don’t have any money for luxuries.
Câu 7:
* Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.
“It’s so stuffy in here.” - “__________”
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