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# A rather surprisingly geographical feature of Antarctica is that a huge freshwater lake

Câu Hỏi:

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 38 to 45.

A rather surprisingly geographical feature of Antarctica is that a huge freshwater lake, one of the world’s largest and deepest, lies hidden there under four kilometers of ice. Now known as Lake Vostok, this huge body of water is located under the ice block that comprises Antarctica. The lake is able to exist in its unfrozen state beneath this block of ice because its waters are warmed by geothermal heat from the earth’s core. The thick glacier above Lake Vostok actually insulates it from the frigid temperature (the lowest ever recorded on Earth) on the surface.

The lake was first discovered in the 1970s while a research team was conducting an aerial survey of the area. Radio waves from the survey equipment penetrated the ice and revealed a body of water of indeterminate size. It was not until much more recently that data collected by satellite made scientist aware of the tremendous size of the lake; satellite -borne radar detected an extremely flat region where the ice remains level because it is floating on the water of the lake.

The discovery of such a huge freshwater lake trapped under Antarctic is of interest to the scientific community because of potential that the lake contains ancient microbes that have survived for thousands upon thousands of years, unaffected by factors such as nuclear fallout and elevated ultraviolet light that have affected organisms in more exposed areas. The downside of the discovery, however, lies in the difficulty of conducting research on the lake in such a harsh climate and in the problems associated with obtaining uncontaminated samples from the lake without actually exposing the lake to contamination. Scientists are looking for possible ways to accomplish this.

Bài viết gần đây

• ### C3H6O2 có bao nhiêu đồng phân đơn chức mạch hở ?

Câu 1. The passage mentions which of the following as a reason for the importance of Lake Vostok?

Đáp án và lời giải

đáp án đúng: A

Câu 2. All of the following are true about the 1970 survey of Antarctica EXCEPT it….

Đáp án và lời giải

đáp án đúng: D

Câu 3. The paragraph following the passage most probably discusses

Đáp án và lời giải

đáp án đúng: D

Câu 4. The word “microbes” in paragraph 3 could be best be replaced by which of the following?

Đáp án và lời giải

đáp án đúng: B

Câu 5. Which of the following is closet in meaning to “frigid” in paragraph 1?

Đáp án và lời giải

đáp án đúng: B

Câu 6. The purpose of the passage is to …………

Đáp án và lời giải

đáp án đúng: C

The purpose of the passage is to present an expected aspect of Antarctica’s geography.

Câu 7. It can be inferred from the passage that the ice would not be flat if …………

Đáp án và lời giải

đáp án đúng: C

It can be inferred from the passage that the ice would not be flat if there were no lake.

Câu 8. What is true of Lake Vostok?

Đáp án và lời giải

đáp án đúng: A

Câu hỏi trong đề: Đề thi học kì 1 môn Tiếng Anh lớp 12 có đáp án số 3

Đáp án và lời giải

đáp án đúng: A

Đáp án và lời giải

đáp án đúng: D

Đáp án và lời giải

đáp án đúng: D

Đáp án và lời giải

đáp án đúng: B

Đáp án và lời giải

đáp án đúng: B

Đáp án và lời giải

đáp án đúng: C

The purpose of the passage is to present an expected aspect of Antarctica’s geography.

Đáp án và lời giải

đáp án đúng: C

It can be inferred from the passage that the ice would not be flat if there were no lake.

Đáp án và lời giải

đáp án đúng: A

Câu hỏi liên quan

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 35 to 42.
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What is true of Lake Vostok?

A. It is beneath a thick slab of ice

B. It is completely frozen

C. It is heated by the sun

D. It is not a saltwater lake

Tổng hợp bởi: Bài Giảng 365

Chuyên mục: Trắc nghiệm

Từ khóa tìm kiếm: A rather surprisingly geographical feature of Antarctica is that a huge freshwater lake – Bài giảng 365

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