Read the following passage and indicate the correct answer to each of the questions. Ocean water plays an indispensable role in supporting life. The great ocean basins hold about 300 million cubic miles of water. From this vast amount, about 80,000 cubic miles of water are sucked into the atmosphere each year by evaporation and returned by precipitation and drainage to the ocean. More than 24,000 cubic miles of rain descend annually upon the continents. This vast amount is ...
Nguyễn Thu Hiền | Chat Online | |
07/09 11:13:41 (Tiếng Anh - Lớp 9) |
Read the following passage and indicate the correct answer to each of the questions.
Ocean water plays an indispensable role in supporting life. The great ocean basins hold about 300 million cubic miles of water. From this vast amount, about 80,000 cubic miles of water are sucked into the atmosphere each year by evaporation and returned by precipitation and drainage to the ocean. More than 24,000 cubic miles of rain descend annually upon the continents. This vast amount is required to replenish the lakes and streams, springs and water tables on which all flora and fauna are dependent. Thus, the hydrosphere permits organic existence.
The hydrosphere has strange characteristics because water has properties unlike those of any other liquid. One anomaly is that water upon freezing expands by about 9 percent, whereas most liquids contract on cooling. For this reason, ice floats on water bodies instead of sinking to the bottom. If the ice sank, the hydrosphere would soon be frozen solidly, except for a thin layer of surface melt water during the summer season. Thus, all aquatic life would be destroyed and the interchange of warm and cold currents, which moderates climate, would be notably absent.
Another outstanding charateristic of water is that water has a heat capacity which is the highest of all liquids and solids except ammonia. This characterisitc enables the oceans to absorb and store vast quantities of heat, thereby often preventing climatic extremes. In addition, water dissolves more substances than any other liquid. It is this characteristic which helps make oceans a great storehouse for minerals which have been washed down from the continents. In several areas of the world these minerals are being commercially exploited. Solar evaporation of salt is widely practised, potash is extracted from the Dead Sea, and magnesium is produced from sea water along the American Gulf Coast.
The author’s main purpose in this passage is to ___________. Lựa chọn một trả lời để xem Đáp án chính xác Báo sai đáp án hoặc câu hỏi |
A. illustrate the importance of conserving water 0 % | 0 phiếu |
B. describe the properties and uses of water 0 % | 0 phiếu |
C. compare water with other liquids 0 % | 0 phiếu |
D. explain how water is used in commerce and industry 0 % | 0 phiếu |
Tổng cộng: | 0 trả lời |
Trắc nghiệm liên quan
- Read the following passage and indicate the correct answer to each of the questions. Ocean water plays an indispensable role in supporting life. The great ocean basins hold about 300 million cubic miles of water. From this vast ... (Tiếng Anh - Lớp 9)
- Read the following passage and indicate the correct answer to each of the questions. Ocean water plays an indispensable role in supporting life. The great ocean basins hold about 300 million cubic miles of water. From this vast ... (Tiếng Anh - Lớp 9)
- Read the following passage and indicate the correct answer to each of the questions. Bringing up children Where one stage of child development has been left out, or not sufficiently experienced, the ... (Tiếng Anh - Lớp 9)
- Read the following passage and indicate the correct answer to each of the questions. Bringing up children Where one stage of child development has been left out, or not sufficiently experienced, the ... (Tiếng Anh - Lớp 9)
- Read the following passage and indicate the correct answer to each of the questions. Bringing up children Where one stage of child development has been left out, or not sufficiently experienced, the ... (Tiếng Anh - Lớp 9)
- Read the following passage and indicate the correct answer to each of the questions. Bringing up children Where one stage of child development has been left out, or not sufficiently experienced, the ... (Tiếng Anh - Lớp 9)
- Read the following passage and indicate the correct answer to each of the questions. Bringing up children Where one stage of child development has been left out, or not sufficiently experienced, the ... (Tiếng Anh - Lớp 9)
- The practice of the rule “Example is better than precept” ______. (Tiếng Anh - Lớp 9)
- Read the following passage and indicate the correct answer to each of the questions. Bringing up children Where one stage of child development has been left out, or not sufficiently experienced, the ... (Tiếng Anh - Lớp 9)
- Read the following passage and indicate the correct answer to each of the questions. Bringing up children Where one stage of child development has been left out, or not sufficiently experienced, the ... (Tiếng Anh - Lớp 9)
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)