Page 92 WRITING "Ups and downs"

Exercise A
1.- C
2.- A
3.- B
4.- A
5.- D
6.- B
7.- D
8.- C

Exercise B
Research are concerned about to decline in bee colonies. Some blame hard winters. In a normal winter, the number of bees in a hive drops by about 10 percent. However, in recent years, beekeepers have seen an annual fall of approximately 30 percent in the number of bees in their hives. Some had losses of roughly 50 percent, and some even lost nearly 90 percent of their bees. Overall, the U.S, experienced a decline of more than 70% in its total bee population. However, this problem does not exist everywhere. In fact, globally, there has been an increase of more than 45% in the number of hives, and honey production has also risen by approximately  100% in the last 50 years.