According to the passage, what happens when the soil is compacted?
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Đáp án A
Theo đoạn văn, điều gì sẽ xảy ra khi đất bị nén lại?
A. có ít nước thấm qua
B. đường đi tốt hơn được tạo thành
C. nước được bảo tồn
D. hoang mạc mở rộng
Thông tin ở câu:
Desert in California revealed that the compaction of the sandy arid soil resulting from the passage of just one motorcycle markedly reduced the infiltration ability of the soil
Nghiên cứu của các nhà khoa học ở sa mạc Mojave phía tây California cho thấy sự nén chặt của đất khô cằn do việc đi qua chỉ một chiếc xe máy làm giảm đáng kể khả năng thấm của đất
(29) ________ brown and black bears, polar bears do not hibernate during the winter.
Read the following passage and mark the letter A, B, C, or D on your answer sheet to choose the word or phrase that best fits each of the numbered blanks from 25 to 29
Sad Times in the Arctic
The beautiful white bears found in the Arctic are in grave danger, and human beings are very (25) ________ the cause of this danger. As we burn fossil fuels to generate electricity or get us around town in our cars and trucks. We create a massive amount of carbon dioxide. This gas has increased in (26) ________ so much over the past few centuries that it is causing global warming.
Polar bears need sea ice in order to live because this ice is their hunting (27) ________. The bears’ main source of food is the meat and blubber of seals. These animals come to the surface holes in the ice to breathe. It is there that the polar bears have (28) _________ to ambush the seals. Without any ice, there is nowhere for the bears to stalk their prey. The seals rarely venture onto land and spend their time out on the sea ice.
In recent years, the sea ice has disappeared in the Arctic during the late summer. This is dangerous for the polar bears, as they rely almost exclusively on seals for food. (29) ________ brown and black bears, polar bears do not hibernate during the winter.
_________ the water clear but also prevent the river from overflowing.
Rebecca _________ on our conversation to tell us that James had just been rushed to hospital.
Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
The philosopher _________ theories I am writing went insane before he died
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 the primary stress in each of the following questions.
Granny is completely deaf. You will have to ______ allowances for her.
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
They’ll be able to walk across the river ______.
