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 30 to 34 Arid regions in the southwestern United States have become increasingly inviting playgrounds for the growing number of recreation seekers who own vehicles such as motorcycles or powered trail bikes and indulge in hill-climbing contests or in carving new trails in the desert. But recent scientific studies show that these off-road vehicles ...
CenaZero♡ | Chat Online | |
05/09 05:45:36 (Tiếng Anh - Lớp 12) |
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 30 to 34
Arid regions in the southwestern United States have become increasingly inviting playgrounds for the growing number of recreation seekers who own vehicles such as motorcycles or powered trail bikes and indulge in hill-climbing contests or in carving new trails in the desert. But recent scientific studies show that these off-road vehicles can cause damage to desert landscapes that has long-range effects on the area’s water-conserving characteristics and on the entire ecology, both plant and animal. Research by scientists in the western Mojave 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 and created a stream of rain runoff water that eroded the hillside surface. In addition, the researchers discovered that the soil compaction caused by the off-road vehicles often killed native plant species and resulted in the invasion of different plant species within a few years. The native perennial species required many more years before they showed signs of returning. The scientists calculated that roughly a century would be required for the infiltration capacity of the Mojave soil to be restored after being compacted by vehicles.
What is the main topic of the passage?
Lựa chọn một trả lời để xem Đáp án chính xác Báo sai đáp án hoặc câu hỏi |
A. Problems caused by recreational vehicles 0 % | 0 phiếu |
B. Types of off-road vehicles 0 % | 0 phiếu |
C. Plants of the southwestern desert 0 % | 0 phiếu |
D. The increasing number of recreation seekers 0 % | 0 phiếu |
Tổng cộng: | 0 trả lời |
Trắc nghiệm liên quan
- (29) ________ brown and black bears, polar bears do not hibernate during the winter. (Tiếng Anh - Lớp 12)
- 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. (Tiếng Anh - Lớp 12)
- Polar bears need sea ice in order to live because this ice is their hunting (27) ________. (Tiếng Anh - Lớp 12)
- This gas has increased in (26) ________ so much over the past few centuries that it is causing global warming. (Tiếng Anh - Lớp 12)
- 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 ... (Tiếng Anh - Lớp 12)
- Receptionist: “Good morning.” Chris: “Good morning. I’ve come to ____ Mrs. Dabria.” (Tiếng Anh - Lớp 12)
- 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. Anne: “Fancy a bite to eat?” Barbara: “_____” (Tiếng Anh - Lớp 12)
- Melanie thought the issue at hand was not morally just, and consequently she would never endorse the petition circulating throughout her neighborhood. (Tiếng Anh - Lớp 12)
- 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. At the managers' meeting, the group decided against the new project as a viable option and ... (Tiếng Anh - Lớp 12)
- You must apply yourself to your work more. (Tiếng Anh - Lớp 12)
Trắc nghiệm mới nhất
- Dialogue completion: Choose A, B, C, or D to complete each dialogue. Mike: You’ve been working out regularly, haven’t you? Nhung: _____________ (Tổng hợp - Lớp 12)
- You can’t just bury your head in the sand and hope that this problem goes away, you know. (Tổng hợp - Lớp 12)
- Antonyms: Choose A, B, C, or D that has the OPPOSITE meaning to the underlined word/ phrase in each question. Why do you always contradict me and say that what I’m saying isn’t true? (Tổng hợp - Lớp 12)
- ‘I want each and every one of you here to put forward as many suggestions as possible’, said the boss bossily. (Tổng hợp - Lớp 12)
- Synonyms: Choose A, B, C, or D that has the CLOSEST meaning to the underlined word/ phrase in each question. The outer structure of the building has been completely renovated and the interior decorators will be starting inside next week. (Tổng hợp - Lớp 12)
- At the end of the performance, the audience _______ the cast of Mamma Mia! by giving them a standing ovation. (Tổng hợp - Lớp 12)
- You should _______ a professional to check your house for earthquake damage, just to be sure there’re no hidden cracks that could cause problems later. (Tổng hợp - Lớp 12)
- If the school _______ aren’t written down anywhere, how are students supposed to know what they are to follow? (Tổng hợp - Lớp 12)
- Tom Cruise wouldn’t be the star he is today _______ made a good impression in his early films. (Tổng hợp - Lớp 12)
- Pia has always wanted to be a travel _______ and take pictures of exotic places. (Tổng hợp - Lớp 12)