Câu hỏi:

14/03/2020 2,456

Read the following passage and mark the letter A,B,C or D on your answers sheet to indicate the correct answer to each of the questions.

Generally, in order to be preserved in the fossil record, organisms must possess hard body parts such as shells or bones. Soft, fleshy structures are quickly destroyed by predators or decayed by bacteria. Even hard parts left on the surface for any length of time will be destroyed, therefore, organisms must be buried rapidly to escape destruction by the elements and to be protected against agents of weathering and erosion. Marine organisms thus are better candidates for fossilization than those living on the land because the ocean is typical the site of sedimentation, whereas the land is largely the site of erosion. The beds of ancient lakes were also excellent sites for rapid burial of skeletal remains of freshwater organisms and skeletons of other animals, including those of early humans, Ancient swaps were particularly plentiful with prolific growths of vegetation, which fossilized in abundance. Many animals became trapped in bogs overgrown by vegetation. The environment of the swaps kept bacterial decay to a minimum, which greatly aided in the preservation of plants and animals. The rapidly accumulating sediments in flood plains, deltas, and stream channels buried freshwater organisms, along with other plants and animals that happened to fall into the water.

Only a small traction of all the organisms that have ever lived are preserved as fossils. Normally, the remains of a plant or animal are completely destroyed through predation and decay. Although it seems that fossilization is common for some organisms, for others it is almost impossible. For the most part of, the remains of organisms are recycled in the earth, which is fortunate because otherwise soil and water would soon became depleted of essential nutrients. Also, most of the fossils exposed on Earth’s surface are destroyed by weathering processes. This make for an incomplete fossil record with poor or no representation of certain species. The best fossils are those composed of that form the vast majority of unaltered fossils. Calcite and aragonite also contributed to a substantial number of fossils of certain organisms.

It can be inferred that flood plains, deltas, and stream channels are similar in which of the following ways?

Đáp án chính xác

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Trả lời:

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Giải bởi Vietjack

Chọn đáp án B

Kỹ năng: Đọc

Giải thích:

Câu hỏi: Có thể suy ra rằng lũ lụt ở đồng bằng, châu thổ và kênh đào giống nhau ở cách nào?

Đáp án B: Những tơi này đều giàu tài nguyên hóa thạch

Thông tin ở câu: “The rapidly accumulating sediments in flood plains, deltas, and stream channels buried freshwater organisms, along with other plants and animals that happened to fall into the water.”

CÂU HỎI HOT CÙNG CHỦ ĐỀ

Câu 1:

Make the letter A,B,C or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions.

I only have time to tell you the main idea of it, not the details.

Xem đáp án » 14/03/2020 17,578

Câu 2:

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to the original sentence in each of the following questions.

this switch must not be touched on any account.

Xem đáp án » 14/03/2020 16,285

Câu 3:

Mark the letter A,B,C or D on your answer sheet to show the underlined part that needs

The need (A) for (B) a well rounded education was an idea (C) espoused by the Greeks (D) in time of Socrates.

Xem đáp án » 14/03/2020 9,488

Câu 4:

Mark the letter A, B, C, or D on your answer sheet that completes each of the following questions.

He went to the airport ______ a taxi.

Xem đáp án » 14/03/2020 8,303

Câu 5:

Mark the letter A, B, C, or D on your answer sheet that completes each of the following questions.

The development company _____ approval from the council for their plans for a new shopping centre.

Xem đáp án » 14/03/2020 7,337

Câu 6:

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 36 to 45.

On July 16, 1969, America launched the Apollo 11, Lunar Landing Mission from Kennedy Space Center. This was a 363-foot-tall space vehicle, the five engines of which on the Saturn V rocket generated 7.5 million pounds of thrust. Twelve minutes after the launch, the astronauts were in orbit 120 miles above the Earth. At a speed of 17,400 mph, they began their four-day journey to the moon. They had nearly a quarter of a million miles to go.

On July 20, 1969, Neil Amstrong descended from the lunar module ladder. Just prior to taking his first step on the moon, Armstrong pilles on a special ring, causing a TV camera to automatically deploy. as he stepped into the moon’s surface, he proclaimed, “That’s one small step for man, one giant leap for mankind.” However, Armstrong inadvertently omitted the “a” before “man”. This error slightly changed the meaning of what was to become known as Armstrong’s famous statement.

Which of the following is the best title for the passage?

Xem đáp án » 14/03/2020 7,131

Câu 7:

Mark the letter A, B, C, or D on your answer sheet that completes each of the following questions.

The Smiths _______ Rome for this weekend

Xem đáp án » 14/03/2020 6,597

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