Câu hỏi:
14/04/2020 267Read 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.
Plants and animals will find it difficult to escape from or adjust to the effect of global warming. Scientists have already observed shifts in the lifecycles of many plants and animals, such as flowers blooming earlier and birds hatching earlier in the spring. Many species have begun shifting where they live or their annual migration patterns due to warmer temperatures.
With further warming, animals will tend to migrate toward the poles and up mountainsides toward higher elevations. Plants will also attempt to shift their rangers, seeking new areas as old habitats grow too warm. In many places, however, human development will prevent these shifts. Species that find cities of farmland blocking their way north or south may become extinct. Species living in unique ecosystems, such as those found in polar and mountaintop regions, are especially at risk because migration to new habitats is not possible. For instance, polar bears and marine mammals in the Arctic are already threatened by dwindling sea ice but have nowhere father to go.
Projecting species extinction due to global warming is extremely difficult. Some scientists have estimated that 20 to 50 percent of species could be committed to extinction with 2 to 3 Celsius degrees of further warming. The rate of warming, not just the magnitude, is extremely important for plants and animals. Some species and even entire ecosystems, such as certain types of forest, many not be able to adjust quickly enough and may disappear.
Ocean ecosystems, especially fragile ones like coral reefs, will also be affected by global warming. Warmer ocean temperatures can cause coral to "bleach", a state which if prolonged will lead to the death of the coral. Scientists estimate that even 1 Celsius degree of additional warming could lead to widespread bleaching and death of coral reefs around the world. Also, increasing carbon dioxide in the atmosphere enters the ocean and increases the acidity of ocean waters. This acidification further stresses ocean ecosystems.
The word "fragile" in paragraph 4 most probably means ________.
Đáp án chính xác
Sách mới 2k7: Tổng ôn Toán, Lí, Hóa, Văn, Sử, Địa…. kỳ thi tốt nghiệp THPT Quốc gia 2025, đánh giá năng lực (chỉ từ 110k).
Quảng cáo
Trả lời:
Giải bởi Vietjack
Đáp án B
fragile: easily broken or damaged à fragile = easily broken: mỏng manh, dễ vỡ
Nhà sách VIETJACK:
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.
Look, will you stop ________ in and let me finish my sentence?
Xem đáp án »
14/04/2020
11,126
Câu 2:
Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
Xem đáp án »
14/04/2020
8,287
Câu 3:
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in the each of following questions.
The head teacher emphasized the need for fairness and equality between the teachers of the school.
Xem đáp án »
14/04/2020
7,073
Câu 4:
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions
"Don't be such a pessimist. There's always a rainbow after the storm. Cheer up!"
Xem đáp án »
14/04/2020
3,258
Câu 5:
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in the each of following questions.
Rose is not confident enough to enter a beautiful contest.
Xem đáp án »
14/04/2020
3,210
Câu 6:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
We really respect our teacher ________ her good teaching method
Xem đáp án »
14/04/2020
2,697
Câu 7:
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in the each of following questions
For eras, musics have performed string violins, which (produce sounds from the vibration of the strings
Xem đáp án »
14/04/2020
2,482
về câu hỏi!