Monday, April 26, 2010

U.S. Number of Farms & All Farm Workers (1910-2000)

The line graph shows the difference between farms & farms workers from 1910 to 2000in the last century.
First,the biggest change was the dramatic drop in the total number of farms & farm workers. the number of farm workers fell from about 14 million persons in 1910 to only around 3million in 2000. After the third decade the farm workers decreaes only one million,whereas,the farms were almost the same. In 1950, the number fell by almost 3.5 million for the farm workers & about half million for the farms. after two decades from 1950-1970 the line graph shows major changes in both farms & farm workers. The farm workers fell from ten million & the farms fell by nearly four million. By the end of this century the two lines stabilized somewhere near three for farm workers & two million for farms in 2000.
In conclusion, the graph shows the social change for farms & farm workers in the 20th century.

The Examination

In general the exams have been put to see how much did the student understand? There are two kind of exam room one is the class room where the student usually took their class, the other is big room which contain more than one class. Some time the exams room it effect on the sinology of student, so I prefer the class room to take the exams.
When we take the exam in the big room with other student by nature will feel nerves and can’t consntreat on the exam. Some students are fried from the exam, so their skills will improve. These kinds of exams are good it tells you about your English level, but at the same time it will not give you chains to change the mark.
In the class room the student will not feel nerves like in the big room, so I think they can do their best in the exam at same atmosphere the use to study in. But that does not mean they is a big chance for cheating between the students, because they know each other, but the teacher can control the class in his way if he won’t.
At the end the teacher deicide which is better for his student withers the class room or the big room. For me I briefer the class room, because it suitable for me.

Wednesday, April 14, 2010

changes in milk consumption,1950 to 2000 USA

The graph compares annual consumption of low fat and whole milk in liters per person in the second half of the 20th century in the USA. Overall, Americans drink much less milk now than at the start of the period.

The biggest change was the dramatic drop in total milk consumption. It fell from about 130 liters per person in 1950 to only around 90 liters five decades later. The second major change was in the type of milk drunk. At the beginning, whole milk was more popular at 120 liters, but it fell sharply to about a quarter that by 2000. In contrast, the amount of low fat milk consumed shot up. It rose from roughly 10 liters in 1950 to five times that in 1980, when consumption was almost tied with whole milk. By the end of the period, it was twice as popular as its counterpart.

In conclusion, the American diet with regard to dairy changer significantly over the time represented. Total consumption decreases but low-fat finally outranks whole milk.