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. The oceans are so vast and deep that until fairly recently, it was widely assumed that no matter how trash and chemicals humans dumped into them, the effects would be negligible. Proponents of dumping in the oceans even had a catchphrase: "The solution to pollution is dilution." Today, we need look no further than the New Jersey–size dead zone ...
Phạm Văn Phú | Chat Online | |
01/09 14:33:12 (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 38 to 45.
The oceans are so vast and deep that until fairly recently, it was widely assumed that no matter how trash and chemicals humans dumped into them, the effects would be negligible. Proponents of dumping in the oceans even had a catchphrase: "The solution to pollution is dilution."
Today, we need look no further than the New Jersey–size dead zone that forms each summer in the Mississippi River Delta, or the thousand–mile–wide swath of decomposing plastic in the northern Pacific
Ocean to see that this "dilution" policy has helped place a once flourishing ocean ecosystem on the brink of collapse.
There is evidence that the oceans have suffered at the hands of mankind for millennia. But recent studies show that degradation, particularly of shoreline areas, has accelerated dramatically in the past three centuries as industrial discharge and run–off from farms and coastal cities have increased.
Pollution is the introduction of harmful contaminants that are outside the norm for a given ecosystem. Common man–made pollutants reaching the oceans include pesticides, herbicides, chemical fertilizers, detergents, oil, sewage, plastics, and other solids. Many of these pollutants collect at the ocean's depths, where they are consumed by small marine organisms and introduced into the global food chain.
Many ocean pollutants are released into the environment far upstream from coastlines. Nitrogen–rich fertilizers applied by farmers inland, for example, end up in local streams, rivers, and groundwater and are eventually deposited in estuaries, bays, and deltas. These excess nutrients can spawn massive blooms of algae that rob the water of oxygen, leaving areas where little or no marine life can exist.
Solid wastes like bags, foam, and other items dumped into the oceans from land or by ships at sea are frequently consumed, with often fatal effects, by marine mammals, fish, and birds that mistake them for food. Discarded fishing nets drift for many years, ensnaring fish and mammals. In certain regions, ocean currents corral trillions of decomposing plastic items and other trash into gigantic, swirling garbage patches. One in the North Pacific, known as the Pacific Trash Vortex, is estimated to be the size of Texas.
Pollution is not always physical. In large bodies of water, sound waves can carry undiminished for miles. The increased presence of loud or persistent sounds from ships, sonar devices, oil rigs, and even from natural sources like earthquakes can disrupt the migration, communication, and reproduction patterns of many marine animals, particularly aquatic mammals like whales and dolphins.
(Source: Reading Advantage by Casey Malarcher)
What does the passage mainly discuss?
Lựa chọn một trả lời để xem Đáp án chính xác Báo sai đáp án hoặc câu hỏi |
A. The end of the “dilution” era 0 % | 0 phiếu |
B. Marine pollution and its many forms 0 % | 0 phiếu |
C. Various kinds of harmful pollutants 0 % | 0 phiếu |
D. Noise and its disruptive effects on marine life 0 % | 0 phiếu |
Tổng cộng: | 0 trả lời |
Tags: 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.,Ocean to see that this "dilution" policy has helped place a once flourishing ocean ecosystem on the brink of collapse.,
Trắc nghiệm 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 33 to 37. Different cultures follow their own special customs when a child’s baby teeth fall out. In Korea, ... (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 33 to 37. Different cultures follow their own special customs when a child’s baby teeth fall out. In Korea, ... (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 33 to 37. Different cultures follow their own special customs when a child’s baby teeth fall out. In Korea, ... (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 33 to 37. Different cultures follow their own special customs when a child’s baby teeth fall out. In Korea, ... (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 33 to 37. Different cultures follow their own special customs when a child’s baby teeth fall out. In Korea, ... (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 word for each of the blanks from 28 to 32. In the early twentieth century, an American woman named Emily Post wrote a book on etiquette. This ... (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 word for each of the blanks from 28 to 32. In the early twentieth century, an American woman named Emily Post wrote a book on etiquette. This ... (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 word for each of the blanks from 28 to 32. In the early twentieth century, an American woman named Emily Post wrote a book on etiquette. This ... (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 word for each of the blanks from 28 to 32. In the early twentieth century, an American woman named Emily Post wrote a book on etiquette. This ... (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 word for each of the blanks from 28 to 32. In the early twentieth century, an American woman named Emily Post wrote a book on etiquette. This ... (Tiếng Anh - Lớp 12)
Trắc nghiệm mới nhất
- Cho hiển thị nội dung văn bản như sau đây trên trang web: Ngôi nhà thân yêu của em nằm (xâu) sâu trong con ngõ nhỏ, vắng lặng Đoạn mã lệnh HTML nào sau đây là đúng để có được kết quả trên khi chạy chương trình? (Tin học - Lớp 12)
- Cho đoạn mã HTML sau: Phương án nào sau đây nêu đúng kết quả hiển thị trên trình duyệt web? (Tin học - Lớp 12)
- Xem xét đoạn mã nguồn sau đây, đoạn văn bản “Khoa CNTT” sẽ liên kết tới đâu? Khoa CNTT được thành lập với sứ mạng đào tạo và nghiên cứu khoa học chất lượng cao trong lĩnh vực CNTT. (Tin học - Lớp 12)
- Cho đoạn mã lệnh CSS: Đoạn mã lệnh HTML nào sau đây sẽ áp dụng định dạng được khai báo? (Tin học - Lớp 12)
- Thẻ HTML nào sau đây được sử dụng để tạo một danh sách xác định thứ tự? (Tin học - Lớp 12)
- Cú pháp HTML nào sau đây là đúng để hiển thị một hình ảnh trên trình duyệt? (Tin học - Lớp 12)
- Thành phần nào sau đây bắt buộc phải có trong cấu trúc của một trang web? (Tin học - Lớp 12)
- Phương án nào sau đây không phải là tên một trình duyệt web? (Tin học - Lớp 12)
- Cho bảng SACH lưu trữ thông tin về các đầu sách trong CSDL thư viện của một trường học. Dữ liệu ví dụ minh hoạ như hình bên dưới. Phát biểu nào sau đây là sai khi nói về việc xác định khoá cho bảng SACH? (Tin học - Lớp 12)
- Trong một giờ dạy học trực tuyến, giáo viên yêu cầu bạn A phát biểu xây dựng bài học. Bạn A phát biểu nhưng không bật camera. Bạn B muốn nhắc nhở bạn A về điều đó. Phương án nào sau đây bạn B nên làm để gìn giữ tính nhân văn trong thế giới ảo? (Tin học - Lớp 12)