Paragraph 4 of the passage serves mainly to do which of the following?
B. Propose a method for dealing with the desertification problem.
Giải bởi Vietjack
Đáp án C
Describe one progress that leads to desertification.
Thông tin nằm ở đoạn 4: “Salination is a type of land degradation that involves an increase in the salt content of the soil.”
It can be inferred that the emergence of the mass media and specialised reading materials was an indication of ___.
The phrase “a specialised readership” in paragraph 4 mostly means “ ”.
Silent reading, especially in public places, flourished mainly because of ___.
When the Sun becomes a red giant, what will the atmosphere be like on the Earth?
Large amounts of gases may be released from the Sun at the end of its life as a .
