What is the main idea of the passage?
Giải bởi Vietjack
D
Đoạn văn mở đầu đã nói nên bao quát nội dung của cả bài “Centuries ago, man discovered that removing moisture from food helped to preserve it, and that the easiest way to do this was to expose the food to sun and wind. In this way the North American Indians produced pemmican (dried meat ground into powder and made into cakes), the Scandinavians made stock fish and the Arabs dried dates and apricots...”
Nội dung chính của bài sẽ bàn về những phương pháp khác nhau để làm khô thức ăn.
Why does the author mention “artistic, political, or pedagogic communication” in the passage?
According to the passage, an exuberant tone of voice may be an indication of a
person’s ____________.
According to paragragh 2, when their habitats grow warmer, animals tend to move ________.
The author mention all of the following as causes of declines in population growth after 1957
EXCEPT
One of the symptoms of shyness in a stressful situation is ________
