The Line graph shows the changes in population of three different countries located in the state of Oregon between the time period of 1940 and 2000-
As we can see that, in 1940 the population of columbia is about 25,000, with having significant population columbia ranks remarkably low. Yamhill has 30,000 of its population in yeqr 1940 and Washig ton had approximately 75,000.
However, from the year 1940-1970 there is 50% increase in the population of columbia.its population reached to 35,000 .Similarly, Yamhill had 50% increase in its population. with 45,000. Washington had greatest change increase in its population .So, in 1970 in its population increased by approximately 125,000.
Furthermore, in the Year 2000 Columbia’s population had risen to 76,000. Meanwhile, Yamhill’s population increased by 90,000 from year 1970 to 2000. Whereas, washigton again had a greatest change in its population with 250,000 in year 2000.
